{"segment":[{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"\u1ede nhi\u1ec1u xe \u0111\u1ea1p c\u00f3 l\u1eafp m\u1ed9t ngu\u1ed3n \u0111i\u1ec7n ( \u0111inam\u00f4) \u0111\u1ec3 th\u1eafp s\u00e1ng \u0111\u00e8n. Quan s\u00e1t ta ch\u1ec9 th\u1ea5y c\u00f3 m\u1ed9t d\u00e2y d\u1eabn n\u1ed1i t\u1eeb \u0111inam\u00f4 t\u1edbi b\u00f3ng \u0111\u00e8n. V\u00ec sao \u0111\u00e8n v\u1eabn s\u00e1ng khi \u0111inam\u00f4 ho\u1ea1t \u0111\u1ed9ng?","select":["A. V\u00ec ngu\u1ed3n \u0111i\u1ec7n m\u1ea1nh n\u00ean ch\u1ec9 c\u1ea7n 1 d\u00e2y l\u00e0 \u0111\u1ee7.","B. V\u00ec d\u00e2y th\u1ee9 hai ch\u00ednh l\u00e0 khung xe \u0111\u1ea1p ( th\u01b0\u1eddng b\u1eb1ng s\u1eaft) n\u1ed1i c\u1ef1c th\u1ee9 hai c\u1ee7a \u0111inam\u00f4 ( v\u1ecf c\u1ee7a \u0111inam\u00f4) v\u1edbi \u0111\u1ea7u th\u1ee9 hai c\u1ee7a b\u00f3ng \u0111\u00e8n, c\u00f2n d\u00e2y th\u1ee9 nh\u1ea5t th\u00ec \u0111\u01b0\u1ee3c n\u1ed1i tr\u1ef1c ti\u1ebfp t\u1eeb \u0111inam\u00f4 t\u1edbi b\u00f3ng \u0111\u00e8n.","C. V\u00ec trong 1 d\u00e2y \u0111\u00f3 c\u00f3 2 d\u00e2y ri\u00eang r\u1ebd.","D. C\u1ea3 3 \u0111\u1ec1u sai."],"hint":"","explain":"<span class='basic_left'>\u1ede nhi\u1ec1u xe \u0111\u1ea1p c\u00f3 l\u1eafp m\u1ed9t ngu\u1ed3n \u0111i\u1ec7n ( \u0111inam\u00f4) \u0111\u1ec3 th\u1eafp s\u00e1ng \u0111\u00e8n. Quan s\u00e1t ta ch\u1ec9 th\u1ea5y c\u00f3 m\u1ed9t d\u00e2y d\u1eabn n\u1ed1i t\u1eeb \u0111inam\u00f4 t\u1edbi b\u00f3ng \u0111\u00e8n. V\u00ec d\u00e2y th\u1ee9 hai ch\u00ednh l\u00e0 khung xe \u0111\u1ea1p ( th\u01b0\u1eddng b\u1eb1ng s\u1eaft) n\u1ed1i c\u1ef1c th\u1ee9 hai c\u1ee7a \u0111inam\u00f4 ( v\u1ecf c\u1ee7a \u0111inam\u00f4) v\u1edbi \u0111\u1ea7u th\u1ee9 hai c\u1ee7a b\u00f3ng \u0111\u00e8n, c\u00f2n d\u00e2y th\u1ee9 nh\u1ea5t th\u00ec \u0111\u01b0\u1ee3c n\u1ed1i tr\u1ef1c ti\u1ebfp t\u1eeb \u0111inam\u00f4 t\u1edbi b\u00f3ng \u0111\u00e8n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2431},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"S\u01a1 \u0111\u1ed3 c\u1ee7a m\u1ea1ch \u0111i\u1ec7n l\u00e0 g\u00ec?","select":["A. L\u00e0 \u1ea3nh ch\u1ee5p m\u1ea1ch \u0111i\u1ec7n th\u1eadt.","B. L\u00e0 h\u00ecnh v\u1ebd m\u1ea1ch \u0111i\u1ec7n th\u1eadt \u0111\u00fang nh\u01b0 k\u00edch th\u01b0\u1edbc c\u1ee7a n\u00f3.","C. L\u00e0 h\u00ecnh v\u1ebd bi\u1ec3u di\u1ec5n m\u1ea1ch \u0111i\u1ec7n b\u1eb1ng c\u00e1c k\u00ed hi\u1ec7u c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn m\u1ea1ch \u0111i\u1ec7n.","D. L\u00e0 h\u00ecnh v\u1ebd m\u1ea1ch \u0111i\u1ec7n th\u1eadt nh\u01b0ng v\u1edbi k\u00edch th\u01b0\u1edbc \u0111\u01b0\u1ee3c thu nh\u1ecf."],"hint":"","explain":"<span class='basic_left'>S\u01a1 \u0111\u1ed3 c\u1ee7a m\u1ea1ch \u0111i\u1ec7n l\u00e0 h\u00ecnh v\u1ebd bi\u1ec3u di\u1ec5n m\u1ea1ch \u0111i\u1ec7n b\u1eb1ng c\u00e1c k\u00ed hi\u1ec7u c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn m\u1ea1ch \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2432},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Chi\u1ec1u d\u00f2ng \u0111i\u1ec7n ch\u1ea1y trong m\u1ea1ch \u0111i\u1ec7n k\u00edn \u0111\u01b0\u1ee3c quy \u01b0\u1edbc nh\u01b0 th\u1ebf n\u00e0o?","select":["A. C\u00f9ng chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3 khi nh\u00ecn v\u00e0o s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n k\u00edn.","B. Ng\u01b0\u1ee3c chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3 khi nh\u00ecn v\u00e0o s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n k\u00edn.","C. Chi\u1ec1u d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng c\u1ee7a c\u00e1c \u0111i\u1ec7n t\u00edch \u00e2m trong m\u1ea1ch.","D. Chi\u1ec1u t\u1eeb c\u1ef1c d\u01b0\u01a1ng qua d\u00e2y d\u1eabn v\u00e0 c\u00e1c d\u1ee5ng c\u1ee5 \u0111i\u1ec7n t\u1edbi c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n."],"hint":"","explain":"<span class='basic_left'>Chi\u1ec1u d\u00f2ng \u0111i\u1ec7n ch\u1ea1y trong m\u1ea1ch \u0111i\u1ec7n k\u00edn \u0111\u01b0\u1ee3c quy \u01b0\u1edbc: chi\u1ec1u t\u1eeb c\u1ef1c d\u01b0\u01a1ng qua d\u00e2y d\u1eabn v\u00e0 c\u00e1c d\u1ee5ng c\u1ee5 \u0111i\u1ec7n t\u1edbi c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2433},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai21/lv2/img\/h0.jpg'\/><\/center>M\u0169i t\u00ean trong s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n n\u00e0o (h\u00ecnh tr\u00ean) ch\u1ec9 \u0111\u00fang chi\u1ec1u quy \u01b0\u1edbc c\u1ee7a d\u00f2ng \u0111i\u1ec7n?","select":["A. H\u00ecnh A","B. H\u00ecnh B","C. H\u00ecnh C","D. H\u00ecnh D"],"hint":"","explain":"<span class='basic_left'>D\u00f2ng \u0111i\u1ec7n c\u00f3 chi\u1ec1u \u0111i ra t\u1eeb c\u1ef1c d\u01b0\u01a1ng, \u0111i qua thi\u1ebft b\u1ecb \u0111i\u1ec7n v\u00e0 \u0111i v\u00e0o t\u1eeb c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2434},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"X\u00e9t m\u1ea1ch \u0111i\u1ec7n k\u00edn v\u1edbi c\u00e1c d\u00e2y d\u1eabn b\u1eb1ng \u0111\u1ed3ng. H\u1ecfi khi c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y trong m\u1ea1ch k\u00edn n\u00e0y th\u00ec c\u00e1c electron t\u1ef1 do trong d\u00e2y d\u1eabn d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng t\u1eeb c\u1ef1c n\u00e0o sang c\u1ef1c n\u00e0o c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n?","select":["A. C\u00e1c electron t\u1ef1 do trong d\u00e2y d\u1eabn d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng t\u1eeb c\u1ef1c \u00e2m qua c\u00e1c v\u1eadt d\u1eabn sang c\u1ef1c d\u01b0\u01a1ng c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n","B. C\u00e1c electron t\u1ef1 do trong d\u00e2y d\u1eabn d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng t\u1eeb c\u1ef1c d\u01b0\u01a1ng qua c\u00e1c v\u1eadt d\u1eabn sang c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n.","C. C\u00e1c electron t\u1ef1 do trong d\u00e2y d\u1eabn kh\u00f4ng d\u1ecbch chuy\u1ec3n.","D. C\u1ea3 3 \u0111\u1ec1u sai"],"hint":"","explain":"<span class='basic_left'>Khi c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y trong m\u1ea1ch k\u00edn n\u00e0y th\u00ec c\u00e1c electron t\u1ef1 do trong d\u00e2y d\u1eabn d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng t\u1eeb c\u1ef1c \u00e2m qua c\u00e1c v\u1eadt d\u1eabn sang c\u1ef1c d\u01b0\u01a1ng c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2435},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"D\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u l\u00e0 g\u00ec ?","select":["A. D\u00f2ng \u0111i\u1ec7n cung c\u1ea5p b\u1edfi pin hay \u00e1c quy c\u00f3 chi\u1ec1u kh\u00f4ng \u0111\u1ed5i g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n 1 chi\u1ec1u","B. D\u00f2ng \u0111i\u1ec7n c\u00f3 c\u00e1c electron t\u1ef1 do ng\u01b0\u1ee3c v\u1edbi chi\u1ec1u quy \u01b0\u1edbc d\u00f2ng \u0111i\u1ec7n g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n 1 chi\u1ec1u","C. D\u00f2ng \u0111i\u1ec7n cung c\u1ea5p b\u1edfi ngu\u1ed3n \u0111i\u1ec7n 1 chi\u1ec1u g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n 1 chi\u1ec1u","D. D\u00f2ng \u0111i\u1ec7n c\u00f3 c\u00e1c electron t\u1ef1 do c\u00f9ng chi\u1ec1u quy \u01b0\u1edbc d\u00f2ng \u0111i\u1ec7n g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n 1 chi\u1ec1u"],"hint":"","explain":"<span class='basic_left'>D\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u l\u00e0 d\u00f2ng \u0111i\u1ec7n cung c\u1ea5p b\u1edfi pin hay \u00e1c quy c\u00f3 chi\u1ec1u kh\u00f4ng \u0111\u1ed5i g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2436},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"Ch\u1ecdn m\u1ed9t ph\u00e1t bi\u1ec3u sai v\u1ec1 chi\u1ec1u d\u00f2ng \u0111i\u1ec7n?","select":["A. D\u00f2ng \u0111i\u1ec7n th\u01b0\u1eddng d\u00f9ng \u1edf gia \u0111\u00ecnh l\u00e0 d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u.","B. D\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c cung c\u1ea5p b\u1edfi pin ho\u1eb7c acquy c\u00f3 chi\u1ec1u kh\u00f4ng \u0111\u1ed5i (\u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u).","C. Chi\u1ec1u d\u00f2ng \u0111i\u1ec7n l\u00e0 chi\u1ec1u t\u1eeb c\u1ef1c d\u01b0\u01a1ng qua d\u00e2y d\u1eabn v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1edbi c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n.","D. Chi\u1ec1u d\u00f2ng \u0111i\u1ec7n l\u00e0 chi\u1ec1u t\u1eeb c\u1ef1c \u00e2m qua d\u00e2y d\u1eabn v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1edbi c\u1ef1c d\u01b0\u01a1ng c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n."],"hint":"","explain":"<span class='basic_left'>Chi\u1ec1u d\u00f2ng \u0111i\u1ec7n l\u00e0 chi\u1ec1u t\u1eeb c\u1ef1c d\u01b0\u01a1ng qua d\u00e2y d\u1eabn v\u00e0 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1edbi c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2437},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng:<br\/>Chi\u1ec1u quy \u01b0\u1edbc c\u1ee7a d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi chi\u1ec1u d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng c\u1ee7a c\u00e1c ... trong d\u00e2y d\u1eabn kim lo\u1ea1i.","select":["A. h\u1ea1t nh\u00e2n nguy\u00ean t\u1eed","B. \u00ealectron t\u1ef1 do","C. \u00ealectron mang \u0111i\u1ec7n t\u00edch \u00e2m","D. proton mang \u0111i\u1ec7n t\u00edch d\u01b0\u01a1ng"],"hint":"","explain":"<span class='basic_left'>Chi\u1ec1u quy \u01b0\u1edbc c\u1ee7a d\u00f2ng \u0111i\u1ec7n ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi chi\u1ec1u d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng c\u1ee7a c\u00e1c \u00ealectron t\u1ef1 do trong d\u00e2y d\u1eabn kim lo\u1ea1i.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2438},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng:<br\/>Chi\u1ec1u d\u00f2ng \u0111i\u1ec7n l\u00e0 chi\u1ec1u t\u1eeb (1)\u2026\u2026\u2026\u2026\u2026\u2026qua (2)\u2026\u2026\u2026\u2026v\u00e0 (3)\u2026\u2026\u2026t\u1edbi (4)\u2026\u2026\u2026\u2026 c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n.","select":["A. (1)- C\u1ef1c d\u01b0\u01a1ng, (2) - d\u1eabn d\u00e2y, (3) - c\u1ef1c \u00e2m, (4) - thi\u1ebft b\u1ecb \u0111i\u1ec7n","B. (1) - C\u1ef1c d\u01b0\u01a1ng, (2) - d\u1eabn d\u00e2y, (3) - thi\u1ebft b\u1ecb \u0111i\u1ec7n, (4) - c\u1ef1c \u00e2m","C. (1) - C\u1ef1c \u00e2m, (2) - d\u1eabn d\u00e2y, (3) - thi\u1ebft b\u1ecb \u0111i\u1ec7n, (4) - c\u1ef1c d\u01b0\u01a1ng","D. (1) - C\u1ef1c \u00e2m, (2) - thi\u1ebft b\u1ecb \u0111i\u1ec7n, (3) - d\u1eabn d\u00e2y, (4) - c\u1ef1c d\u01b0\u01a1ng"],"hint":"","explain":"<span class='basic_left'>Chi\u1ec1u d\u00f2ng \u0111i\u1ec7n l\u00e0 chi\u1ec1u t\u1eeb (1) c\u1ef1c d\u01b0\u01a1ng qua (2) d\u00e2y d\u1eabn v\u00e0 (3) thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1edbi (4) c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2439},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"D\u00f2ng chuy\u1ec3n d\u1eddi theo m\u1ed9t chi\u1ec1u x\u00e1c \u0111\u1ecbnh c\u1ee7a c\u00e1c h\u1ea1t mang \u0111i\u1ec7n t\u00edch g\u1ecdi l\u00e0?","select":["A. D\u00f2ng \u0111i\u1ec7n","B. D\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u","C. D\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i","D. D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u"],"hint":"","explain":"<span class='basic_left'>D\u00f2ng chuy\u1ec3n d\u1eddi theo m\u1ed9t chi\u1ec1u x\u00e1c \u0111\u1ecbnh c\u1ee7a c\u00e1c h\u1ea1t mang \u0111i\u1ec7n t\u00edch g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2440},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u \u0111\u00fang? ","select":["A. D\u00f2ng \u0111i\u1ec7n trong m\u1ea1ch c\u00f3 chi\u1ec1u c\u00f9ng chi\u1ec1u v\u1edbi chi\u1ec1u d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng c\u1ee7a c\u00e1c electron t\u1ef1 do trong d\u00e2y d\u1eabn kim lo\u1ea1i","B. D\u00f2ng \u0111i\u1ec7n trong m\u1ea1ch c\u00f3 chi\u1ec1u ng\u01b0\u1ee3c v\u1edbi chi\u1ec1u d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng c\u1ee7a c\u00e1c electron t\u1ef1 do trong d\u00e2y d\u1eabn kim lo\u1ea1i","C. D\u00f2ng \u0111i\u1ec7n trong m\u1ea1ch c\u00f3 chi\u1ec1u c\u00f9ng v\u1edbi chi\u1ec1u d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng c\u1ee7a c\u00e1c ion d\u01b0\u01a1ng trong d\u00e2y d\u1eabn kim lo\u1ea1i","D. D\u00f2ng \u0111i\u1ec7n trong m\u1ea1ch c\u00f3 chi\u1ec1u ng\u01b0\u1ee3c v\u1edbi chi\u1ec1u d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng c\u1ee7a c\u00e1c ion \u00e2m trong d\u00e2y d\u1eabn kim lo\u1ea1i"],"hint":"","explain":"<span class='basic_left'>D\u00f2ng \u0111i\u1ec7n trong m\u1ea1ch c\u00f3 chi\u1ec1u ng\u01b0\u1ee3c v\u1edbi chi\u1ec1u d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng c\u1ee7a c\u00e1c electron t\u1ef1 do trong d\u00e2y d\u1eabn kim lo\u1ea1i. D\u00f2ng \u0111i\u1ec7n h\u01b0\u1edbng t\u1eeb c\u1ef1c d\u01b0\u01a1ng sang c\u1ef1c \u00e2m, c\u00f2n c\u00e1c electron h\u01b0\u1eddng t\u1eeb c\u1ef1c \u00e2m sang c\u1ef1c d\u01b0\u01a1ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2441},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai21/lv2/img\/h1.jpg'\/><\/center>M\u1ea1ch \u0111i\u1ec7n \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed nh\u01b0 h\u00ecnh tr\u00ean. \u0110\u00e8n A v\u00e0 B s\u00e1ng khi:","select":["A. C\u00f4ng t\u1eafc A \u0111\u00f3ng, c\u00f4ng t\u1eafc B m\u1edf","B. C\u00f4ng t\u1eafc B \u0111\u00f3ng, c\u00f4ng t\u1eafc A m\u1edf","C. C\u00f4ng t\u1eafc A \u0111\u00f3ng, c\u00f4ng t\u1eafc B \u0111\u00f3ng","D. C\u00f4ng t\u1eafc A m\u1edf, c\u00f4ng t\u1eafc B m\u1edf"],"hint":"","explain":"<span class='basic_left'>C\u00f4ng t\u1eafc A \u0111\u00f3ng, c\u00f4ng t\u1eafc B \u0111\u00f3ng, m\u1ea1ch k\u00edn, \u0111\u00e8n s\u00e1ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2442},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai21/lv2/img\/h2.jpg'\/><\/center>Cho m\u1ea1ch \u0111i\u1ec7n nh\u01b0 h\u00ecnh tr\u00ean. Khi b\u1eadt c\u00f4ng t\u1eafc \u0111\u00e8n n\u00e0o s\u00e1ng?","select":["A. Ch\u1ec9 c\u00f3 \u0111\u00e8n A s\u00e1ng","B. Ch\u1ec9 c\u00f3 \u0111\u00e8n B s\u00e1ng","C. C\u1ea3 hai \u0111\u00e8n \u0111\u1ec1u s\u00e1ng","D. C\u1ea3 hai \u0111\u00e8n \u0111\u1ec1u t\u1eaft"],"hint":"","explain":"<span class='basic_left'>Khi ch\u01b0a \u0111\u00f3ng c\u00f4ng t\u1eafc, \u0111\u00e8n A \u0111\u00e3 s\u00e1ng r\u1ed3i, n\u00ean khi \u0111\u00f3ng c\u00f4ng t\u1eafc th\u00ec \u0111\u00e8n B s\u00e1ng th\u00eam.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2443},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai21/lv2/img\/h3.jpg'\/><\/center>Trong h\u00ecnh tr\u00ean, chi\u1ec1u d\u00f2ng \u0111i\u1ec7n trong s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n n\u00e0o \u0111\u00fang?","select":["A. M\u1ea1ch (1)","B. M\u1ea1ch (2)","C. C\u1ea3 (1) v\u00e0 (2) \u0111\u1ec1u \u0111\u00fang","D. C\u1ea3 (1) v\u00e0 (2) \u0111\u1ec1u sai"],"hint":"","explain":"<span class='basic_left'>Chi\u1ec1u d\u00f2ng \u0111i\u1ec7n l\u00e0 chi\u1ec1u t\u1eeb c\u1ef1c d\u01b0\u01a1ng qua d\u00e2y d\u1eabn v\u00e0 b\u00f3ng \u0111\u00e8n t\u1edbi c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2444},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai21/lv2/img\/h15.jpg'\/><\/center>Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang: <br\/>Cho m\u1ed9t \u0111o\u1ea1n m\u1ea1ch \u0111i\u1ec7n nh\u01b0 h\u00ecnh. \u0110\u00e8n ${{\u0110}_{1}}$ v\u00e0 \u0111\u00e8n ${{\u0110}_{2}}$. \u0110i\u1ec7n tr\u1edf kh\u00f3a ${{K}_{1}}$, ${{K}_{2}}$ b\u1eb1ng kh\u00f4ng.","select":["A. Khi ${{K}_{1}}$, ${{K}_{2}}$ \u0111\u1ec1u \u0111\u00f3ng: \u0111\u00e8n ${{\u0110}_{1}}$, ${{\u0110}_{2}}$ \u0111\u1ec1u s\u00e1ng","B. Khi ${{K}_{1}}$ \u0111\u00f3ng, ${{K}_{2}}$ ng\u1eaft (m\u1edf): \u0111\u00e8n ${{\u0110}_{1}}$ t\u1eaft, \u0111\u00e8n ${{\u0110}_{2}}$ s\u00e1ng","C. Khi ${{K}_{1}}$ ng\u1eaft, ${{K}_{2}}$ \u0111\u00f3ng: \u0111\u00e8n ${{\u0110}_{1}}$ t\u1eaft, \u0111\u00e8n ${{\u0110}_{2}}$ s\u00e1ng","D. ${{K}_{1}}$, ${{K}_{2}}$ \u0111\u1ec1u ng\u1eaft. \u0110\u00e8n ${{\u0110}_{1}}$, ${{\u0110}_{2}}$ \u0111\u1ec1u t\u1eaft"],"hint":"","explain":"<span class='basic_left'>Khi ${{K}_{1}}$ \u0111\u00f3ng, ${{K}_{2}}$ ng\u1eaft (m\u1edf): \u0111\u00e8n ${{\u0110}_{1}}$ t\u1eaft, \u0111\u00e8n ${{\u0110}_{2}}$ s\u00e1ng. V\u00ec khi \u0111\u00f3 ch\u1ec9 c\u00f3 d\u00f2ng \u0111i\u1ec7n \u0111i qua ${{\u0110}_{2}}$, n\u00ean ch\u1ec9 c\u00f3 ${{\u0110}_{2}}$ s\u00e1ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2445},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[4]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai21/lv2/img\/h16.jpg'\/><\/center>Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi sai.<br\/>Cho m\u1ed9t \u0111o\u1ea1n m\u1ea1ch \u0111i\u1ec7n nh\u01b0 h\u00ecnh. \u0110\u00e8n ${{\u0110}_{1}}$ v\u00e0 \u0111\u00e8n ${{\u0110}_{2}}$. \u0110i\u1ec7n tr\u1edf kh\u00f3a K\u2019 b\u1eb1ng kh\u00f4ng.","select":["A. Khi K, K\u2019 \u0111\u00f3ng: \u0111\u00e8n ${{\u0110}_{1}}$, ${{\u0110}_{2}}$ \u0111\u1ec1u s\u00e1ng","B. Khi K \u0111\u00f3ng, K\u2019 ng\u1eaft (m\u1edf): \u0111\u00e8n ${{\u0110}_{1}}$ s\u00e1ng, \u0111\u00e8n ${{\u0110}_{2}}$ t\u1eaft","C. K, K\u2019 \u0111\u1ec1u ng\u1eaft. \u0110\u00e8n ${{\u0110}_{1}}$, ${{\u0110}_{2}}$ \u0111\u1ec1u t\u1eaft","D. Khi K ng\u1eaft, K\u2019 \u0111\u00f3ng: \u0111\u00e8n ${{\u0110}_{1}}$ t\u1eaft, \u0111\u00e8n ${{\u0110}_{2}}$ s\u00e1ng"],"hint":"","explain":"<span class='basic_left'>Khi K ng\u1eaft, K\u2019 \u0111\u00f3ng: \u0111\u00e8n ${{\u0110}_{1}}$ t\u1eaft, \u0111\u00e8n ${{\u0110}_{2}}$ t\u1eaft.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2446},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai21/lv2/img\/h17.jpg'\/><\/center>Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi sai.<br\/>Cho m\u1ed9t \u0111o\u1ea1n m\u1ea1ch \u0111i\u1ec7n nh\u01b0 h\u00ecnh. \u0110\u00e8n ${{\u0110}_{1}}$ v\u00e0 \u0111\u00e8n ${{\u0110}_{2}}$. \u0110i\u1ec7n tr\u1edf kh\u00f3a K b\u1eb1ng kh\u00f4ng","select":["A. Khi K \u0111\u00f3ng: \u0111\u00e8n ${{\u0110}_{1}}$ t\u1eaft, \u0111\u00e8n ${{\u0110}_{2}}$ s\u00e1ng","B. Khi K ng\u1eaft: \u0111\u00e8n ${{\u0110}_{1}}$, \u0111\u00e8n ${{\u0110}_{2}}$ \u0111\u1ec1u s\u00e1ng","C. Khi K \u0111\u00f3ng: \u0111\u00e8n ${{\u0110}_{1}}$ s\u00e1ng, \u0111\u00e8n ${{\u0110}_{2}}$ t\u1eaft","D. C\u1ea3 A v\u00e0 B \u0111\u1ec1u \u0111\u00fang"],"hint":"","explain":"<span class='basic_left'>Khi K \u0111\u00f3ng: \u0111\u00e8n ${{\u0110}_{1}}$ t\u1eaft (do b\u1ecb n\u1ed1i t\u1eaft), \u0111\u00e8n ${{\u0110}_{2}}$ v\u1eabn s\u00e1ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2447},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[1]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai21/lv2/img\/h18.jpg'\/><\/center>Ch\u1ecdn c\u00e1ch m\u1eafc \u0111\u00fang c\u1ee7a c\u00e1c ngu\u1ed3n \u0111i\u1ec7n tr\u00ean h\u00ecnh ? ","select":["A. C\u00e1ch (1)","B. C\u00e1ch (2)","C. C\u00e1ch (3)","D. C\u1ea3 ba c\u00e1ch"],"hint":"","explain":"<span class='basic_left'>C\u00e1ch (1) \u0111\u00fang, c\u1ef1c c\u01b0\u01a1ng c\u1ee7a pin n\u00e0y ph\u1ea3i n\u1ed1i c\u01b0c \u00e2m c\u1ee7a pin kia \u0111\u1ec3 t\u1ea1o th\u00e0nh b\u1ed9 ngu\u1ed3n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2448},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai21/lv2/img\/h19.jpg'\/><\/center>K\u00ed hi\u1ec7u n\u00e0o sau \u0111\u00e2y l\u00e0 k\u00ed hi\u1ec7u c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n (pin, \u1eafc \u2013 qui):","select":["A. K\u00fd hi\u1ec7u A","B. K\u00fd hi\u1ec7u B","C. K\u00fd hi\u1ec7u C","D. K\u00fd hi\u1ec7u D"],"hint":"","explain":"<span class='basic_left'>Ph\u1ea7n C bi\u1ec3u di\u1ec5n c\u00e1c ngu\u1ed3n \u0111i\u1ec7n gh\u00e9p th\u00e0nh b\u1ed9.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2449},{"time":24,"part":[{"title":"L\u1ef1a ch\u1ecdn \u0111\u00e1p \u00e1n \u0111\u00fang nh\u1ea5t","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai21/lv2/img\/h20.jpg'\/><\/center>Ch\u1ecdn c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang: H\u00e3y cho bi\u1ebft chi\u1ec1u c\u1ee7a d\u00f2ng \u0111i\u1ec7n:","select":["A. T\u1eeb \u0111\u1ea7u (-) sang \u0111\u1ea7u (+)","B. T\u1eeb \u0111\u1ea7u (+) sang \u0111\u1ea7u (-)","C. Chi\u1ec1u n\u00e0o c\u0169ng \u0111\u00fang","D. Kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c"],"hint":"","explain":"<span class='basic_left'>Chi\u1ec1u c\u1ee7a d\u00f2ng \u0111i\u1ec7n t\u1eeb d\u1ea5u (+) sang d\u1ea5u (-) <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2450}],"lesson":{"save":0,"level":2}}