{"segment":[{"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":"\u0110\u1ec3 \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u m\u1ed9t d\u1ee5ng c\u1ee5 \u0111i\u1ec7n, ng\u01b0\u1eddi ta d\u00f9ng:","select":["A. V\u00f4n k\u1ebf m\u1eafc song song v\u1edbi d\u1ee5ng c\u1ee5 \u0111i\u1ec7n \u0111\u00f3","B. V\u00f4n k\u1ebf m\u1eafc n\u1ed1i ti\u1ebfp v\u1edbi d\u1ee5ng c\u1ee5 \u0111i\u1ec7n \u0111\u00f3","C. Ampe k\u1ebf m\u1eafc song song v\u1edbi d\u1ee5ng c\u1ee5 \u0111i\u1ec7n \u0111\u00f3","D. Ampe k\u1ebf m\u1eafc n\u1ed1i ti\u1ebfp v\u1edbi d\u1ee5ng c\u1ee5 \u0111i\u1ec7n \u0111\u00f3"],"hint":"","explain":"<span class='basic_left'>\u0110\u1ec3 \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u m\u1ed9t d\u1ee5ng c\u1ee5 \u0111i\u1ec7n, ng\u01b0\u1eddi ta d\u00f9ng v\u00f4n k\u1ebf m\u1eafc song song v\u1edbi d\u1ee5ng c\u1ee5 \u0111i\u1ec7n \u0111\u00f3. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":2531},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u ph\u00e1t bi\u1ec3u sai","select":["A. \u0110\u1ec3 \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai c\u1ef1c c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n ta d\u00f9ng v\u00f4n k\u1ebf","B. V\u00f4n k\u1ebf c\u00f3 th\u1ec3 d\u00f9ng \u0111\u1ec3 \u0111o c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n","C. M\u1ed7i v\u00f4n k\u1ebf c\u00f3 c\u00f3 m\u1ed9t gi\u1edbi h\u1ea1n \u0111o nh\u1ea5t \u0111\u1ecbnh","D. N\u1ebfu tr\u00ean m\u1eb7t v\u00f4n k\u1ebf c\u00f3 ghi ch\u1eef V th\u00ec s\u1ed1 \u0111o c\u1ee7a v\u00f4n k\u1ebf \u0111\u00f3 t\u00ednh theo \u0111\u01a1n v\u1ecb v\u00f4n"],"hint":"","explain":"<span class='basic_left'> V\u00f4n k\u1ebf ch\u1ec9 c\u00f3 th\u1ec3 \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":2532},{"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":"Khi \u0111\u1eb7t thang \u0111o c\u1ee7a m\u1ed9t \u0111i\u1ec7n k\u1ebf \u1edf thang c\u00f3 ghi ch\u1eef mV th\u00ec ta c\u00f3 th\u1ec3 d\u00f9ng \u0111i\u1ec7n k\u1ebf \u0111\u00f3 \u0111\u1ec3 \u0111o:","select":["A. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf c\u00f3 gi\u00e1 tr\u1ecb kho\u1ea3ng v\u00e0 ch\u1ee5c v\u00f4n","B. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf c\u00f3 gi\u00e1 tr\u1ecb kho\u1ea3ng v\u00e0i v\u00f4n","C. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf c\u00f3 gi\u00e1 tr\u1ecb kho\u1ea3ng v\u00e0i kil\u00f4v\u00f4n","D. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf c\u00f3 gi\u00e1 tr\u1ecb kho\u1ea3ng v\u00e0i miliv\u00f4n"],"hint":"","explain":"<span class='basic_left'>Khi \u0111\u1eb7t thang \u0111o c\u1ee7a m\u1ed9t \u0111i\u1ec7n k\u1ebf \u1edf thang c\u00f3 ghi ch\u1eef mV th\u00ec ta c\u00f3 th\u1ec3 d\u00f9ng \u0111i\u1ec7n k\u1ebf \u0111\u00f3 \u0111\u1ec3 \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf c\u00f3 gi\u00e1 tr\u1ecb kho\u1ea3ng v\u00e0i miliv\u00f4n. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 .<\/span><\/span> ","column":1}]}],"id_ques":2533},{"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":"\u0110\u1ec3 \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai c\u1ef1c c\u1ee7a b\u00ecnh \u1eafc \u2013 quy xe m\u00e1y, ta n\u00ean d\u00f9ng v\u00f4n k\u1ebf c\u00f3 gi\u1edbi h\u1ea1n \u0111o n\u00e0o l\u00e0 ph\u00f9 h\u1ee3p nh\u1ea5t? ","select":["A. 5V","B. 10V","C. 20V","D. 1kV"],"hint":"","explain":"<span class='basic_left'>b\u00ecnh \u1eafc \u2013 quy xe m\u00e1y c\u00f3 hi\u1ec7u \u0111i\u1ec7n th\u1ebf kho\u1ea3ng 12V, n\u00ean ta d\u00f9ng v\u00f4n k\u1ebf c\u00f3 GH\u0110 l\u00e0 20V l\u00e0 ph\u00f9 h\u1ee3p nh\u1ea5t.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2534},{"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":"Tr\u00ean thang \u0111o c\u1ee7a m\u1ed9t \u0111i\u1ec7n k\u1ebf, thang \u0111o c\u00f3 ghi ch\u1eef n\u00e0o sau \u0111\u00e2y kh\u00f4ng d\u00f9ng \u0111\u1ec3 \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf? ","select":["A. Ghi ch\u1eef V","B. Ghi ch\u1eef A","C. Ghi ch\u1eef mV","D. Ghi ch\u1eef kV"],"hint":"","explain":"<span class='basic_left'>Tr\u00ean thang \u0111o c\u1ee7a m\u1ed9t \u0111i\u1ec7n k\u1ebf, thang \u0111o c\u00f3 ghi ch\u1eef A d\u00f9ng \u0111\u1ec3 \u0111o c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2535},{"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":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai26/lv2/img\/h0.jpg'\/><\/center>Trong m\u1ed9t gi\u1edd th\u1ef1c h\u00e0nh v\u1eadt l\u00ed, b\u1ea1n Ti\u1ebfn s\u1eed d\u1ee5ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng hi\u1ec7n s\u1ed1 nh\u01b0 h\u00ecnh v\u1ebd b\u00ean, n\u1ebfu b\u1ea1n \u1ea5y \u0111ang mu\u1ed1n \u0111o \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u 220V th\u00ec ph\u1ea3i xoay n\u00fam v\u1eb7n \u0111\u1ebfn :","select":["A. v\u1ea1ch s\u1ed1 250 trong v\u00f9ng DCV.","B. v\u1ea1ch s\u1ed1 50 trong v\u00f9ng ACV","C. v\u1ea1ch s\u1ed1 50 trong v\u00f9ng DCV","D. v\u1ea1ch s\u1ed1 250 trong v\u00f9ng ACV"],"hint":"","explain":"<span class='basic_left'>Mu\u1ed1n \u0111o \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u 220V th\u00ec ph\u1ea3i xoay n\u00fam v\u1eb7n \u0111\u1ebfn v\u1ea1ch s\u1ed1 250 trong v\u00f9ng ACV.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2536},{"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/bai26/lv2/img\/127.jpg'\/><\/center>\u0110\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng c\u00f3 thang \u0111o \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp nh\u01b0 tr\u00ean h\u00ecnh 12.7. D\u00f9ng \u0111\u1ed3ng h\u1ed3 n\u00e0y c\u00f3 th\u1ec3 \u0111o \u0111\u01b0\u1ee3c c\u00e1c gi\u00e1 tr\u1ecb n\u00e0o sau \u0111\u00e2y:","select":["A. 5A","B. 5V","C. 50V","D. 10A"],"hint":"","explain":"<span class='basic_left'> \u0110\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng c\u00f3 thang \u0111o \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp nh\u01b0 tr\u00ean h\u00ecnh 12.7 c\u00f3 GH\u0110 20V. Do \u0111\u00f3 d\u00f9ng \u0111\u1ed3ng h\u1ed3 n\u00e0y c\u00f3 th\u1ec3 \u0111o \u0111\u01b0\u1ee3c gi\u00e1 tr\u1ecb 5V.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2537},{"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/bai26/lv2/img\/126.jpg'\/><\/center>Quan s\u00e1t tr\u00ean h\u00ecnh 12.6. \u0110\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111o:","select":["A. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf m\u1ed9t chi\u1ec1u","B. C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n","C. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf xoay chi\u1ec1u","D. \u0110\u1ea1i l\u01b0\u1ee3ng kh\u00e1c"],"hint":"","explain":"<span class='basic_left'>Quan s\u00e1t tr\u00ean h\u00ecnh 12.6 \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng \u0111ang \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf xoay chi\u1ec1u<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2538},{"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/bai26/lv2/img\/128.jpg'\/><\/center>D\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng c\u00f3 thang \u0111o \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp nh\u01b0 tr\u00ean h\u00ecnh 12.8. \u0110\u1ed3ng h\u1ed3 \u0111ang \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111o \u0111\u1ea1i l\u01b0\u1ee3ng g\u00ec? Gi\u1edbi h\u1ea1n \u0111o l\u00e0 bao nhi\u00eau?","select":["A. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf m\u1ed9t chi\u1ec1u GH\u0110 l\u00e0 200mV","B. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf m\u1ed9t chi\u1ec1u, GH\u0110 l\u00e0 1000V","C. C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n, GH\u0110 l\u00e0 20mA","D. C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n, GH\u0110 l\u00e0 10A"],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed3ng h\u1ed3 \u0111ang \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111o c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n GH\u0110 l\u00e0 20 mA<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2539},{"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":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai26/lv2/img\/h2.jpg'\/><\/center>D\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng nh\u01b0 h\u00ecnh 12.9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111o c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng n\u00e0o? ","select":["A. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf m\u1ed9t chi\u1ec1u","B. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf xoay chi\u1ec1u","C. C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n","D. C\u1ea3 ba c\u00e2u \u0111\u1ec1u \u0111\u00fang"],"hint":"","explain":"<span class='basic_left'>D\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng nh\u01b0 h\u00ecnh 12.9 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 \u0111o c\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng:<br\/>Hi\u1ec7u \u0111i\u1ec7n th\u1ebf m\u1ed9t chi\u1ec1u.<br\/>Hi\u1ec7u \u0111i\u1ec7n th\u1ebf xoay chi\u1ec1u.<br\/>C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2540},{"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/bai26/lv2/img\/h2.jpg'\/><\/center>D\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng nh\u01b0 h\u00ecnh 12.10 c\u00f3 th\u1ec3 \u0111o ch\u00ednh x\u00e1c gi\u00e1 tr\u1ecb hi\u1ec7u \u0111i\u1ec7n th\u1ebf l\u00e0 bao nhi\u00eau?","select":["A. 0,001V","B. 0,01V","C. 0,1V","D. 1V"],"hint":"","explain":"<span class='basic_left'>D\u00f9ng \u0111\u1ed3ng h\u1ed3 \u0111o \u0111i\u1ec7n \u0111a n\u0103ng nh\u01b0 h\u00ecnh 12.10 c\u00f3 th\u1ec3 \u0111o ch\u00ednh x\u00e1c gi\u00e1 tr\u1ecb hi\u1ec7u \u0111i\u1ec7n th\u1ebf l\u00e0 0,001V. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2541},{"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":"T\u00e1c d\u1ee5ng c\u1ee7a m\u00e1y bi\u1ebfn th\u1ebf l\u00e0 g\u00ec?","select":["A. T\u0103ng hi\u1ec7u \u0111i\u1ec7n th\u1ebf","B. Gi\u1ea3m hi\u1ec7u \u0111i\u1ec7n th\u1ebf","C. Bi\u1ebfn \u0111\u1ed5i hi\u1ec7u \u0111i\u1ec7n th\u1ebf theo \u00fd mu\u1ed1n","D. C\u00e2u A, B v\u00e0 C \u0111\u1ec1u \u0111\u00fang"],"hint":"","explain":"<span class='basic_left'>T\u00e1c d\u1ee5ng c\u1ee7a m\u00e1y bi\u1ebfn th\u1ebf l\u00e0 t\u0103ng, gi\u1ea3m ho\u1eb7c bi\u1ebfn \u0111\u1ed5i hi\u1ec7u \u0111i\u1ec7n th\u1ebf theo \u00fd mu\u1ed1n. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2542},{"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":"C\u00f3 n\u00ean s\u1eed d\u1ee5ng hi\u1ec7u \u0111i\u1ec7n th\u1ebf nh\u1ecf h\u01a1n hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u0111\u1ecbnh m\u1ee9c cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n nh\u01b0 m\u00e1y vi t\u00ednh, tivi, t\u1ee7 l\u1ea1nh? Gi\u1ea3i th\u00edch v\u00ec sao?","select":["A. C\u00f3, v\u00ec s\u1eed d\u1ee5ng nh\u01b0 v\u1eady s\u1ebd ti\u1ebft ki\u1ec7m \u0111i\u1ec7n","B. C\u00f3, v\u00ec s\u1eed d\u1ee5ng nh\u01b0 v\u1eady s\u1ebd \u0103ng tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb","C. Kh\u00f4ng, v\u00ec s\u1eed d\u1ee5ng nh\u01b0 v\u1eady s\u1ebd gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb","D. C\u00f3 hay kh\u00f4ng t\u00f9y t\u1eebng thi\u1ebft b\u1ecb"],"hint":"","explain":"<span class='basic_left'>Kh\u00f4ng n\u00ean s\u1eed d\u1ee5ng hi\u1ec7u \u0111i\u1ec7n th\u1ebf nh\u1ecf h\u01a1n hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u0111\u1ecbnh m\u1ee9c cho c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n nh\u01b0 m\u00e1y vi t\u00ednh, tivi, t\u1ee7 l\u1ea1nh v\u00ec s\u1ebd l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2543},{"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\/>C\u00e1c d\u1ee5ng c\u1ee5 \u0111\u1ed1t n\u00f3ng b\u1eb1ng \u0111i\u1ec7n nh\u01b0 b\u1ebfp \u0111i\u1ec7n, b\u00e0n l\u00e0\u2026\u2026\u2026\u2026\u2026\u2026\u2026v\u1edbi hi\u1ec7u \u0111i\u1ec7n th\u1ebf\u2026\u2026\u2026\u2026\u2026hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u0111\u1ecbnh m\u1ee9c.","select":["A. Kh\u00f4ng th\u1ec3 ho\u1ea1t \u0111\u1ed9ng - nh\u1ecf h\u01a1n ","B. C\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng - nh\u1ecf h\u01a1n","C. C\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng - l\u1edbn h\u01a1n","D. C\u1ea3 ba c\u00e2u \u0111\u1ec1u sai"],"hint":"","explain":"<span class='basic_left'>C\u00e1c d\u1ee5ng c\u1ee5 \u0111\u1ed1t n\u00f3ng b\u1eb1ng \u0111i\u1ec7n nh\u01b0 b\u1ebfp \u0111i\u1ec7n, b\u00e0n l\u00e0 c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng v\u1edbi hi\u1ec7u \u0111i\u1ec7n th\u1ebf nh\u1ecf h\u01a1n hi\u1ec7u \u0111\u1ec7n th\u1ebf \u0111\u1ecbnh m\u1ee9c, tuy nhi\u00ean s\u1ebd l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 thi\u1ebfu nhi\u1ec7t c\u1ea7n thi\u1ebft.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2544},{"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":"Mu\u1ed1n \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u b\u00f3ng \u0111\u00e8n ta ph\u1ea3i:","select":["A. Hai ch\u1ed1t c\u1ee7a v\u00f4n k\u1ebf \u0111\u01b0\u1ee3c m\u1eafc tr\u1ef1c ti\u1ebfp v\u00e0o hai \u0111\u1ea7u b\u00f3ng \u0111\u00e8n","B. M\u1eafc ch\u1ed1t d\u01b0\u01a1ng c\u1ee7a v\u00f4n k\u1ebf v\u1ec1 ph\u00eda c\u1ef1c d\u01b0\u01a1ng c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n","C. M\u1eafc ch\u1ed1t \u00e2m c\u1ee7a v\u00f4n k\u1ebf v\u1ec1 ph\u00eda c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n","D. G\u1ed9p c\u1ea3 ba \u0111\u00e1p \u00e1n A, B, C m\u1edbi \u0111\u00fang."],"hint":"","explain":"<span class='basic_left'>Mu\u1ed1n \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u b\u00f3ng \u0111\u00e8n ta ph\u1ea3i:<br\/> Hai ch\u1ed1t c\u1ee7a v\u00f4n k\u1ebf \u0111\u01b0\u1ee3c m\u1eafc tr\u1ef1c ti\u1ebfp v\u00e0o hai \u0111\u1ea7u b\u00f3ng \u0111\u00e8n <br\/>M\u1eafc ch\u1ed1t d\u01b0\u01a1ng c\u1ee7a v\u00f4n k\u1ebf v\u1ec1 ph\u00eda c\u1ef1c d\u01b0\u01a1ng c\u1ee7a ngu\u1ed3n \u0111i\u1ec7n <br\/>M\u1eafc ch\u1ed1t \u00e2m c\u1ee7a v\u00f4n k\u1ebf v\u1ec1 ph\u00eda 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":2545},{"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":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai26/lv2/img\/h4.jpg'\/><\/center>Trong h\u00ecnh tr\u00ean, \u0111\u1ec3 \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa 2 \u0111\u1ea7u \u0111i\u1ec7n tr\u1edf, ng\u01b0\u1eddi ta m\u1eafc m\u1ed9t s\u1ed1 m\u1ea1ch nh\u01b0 h\u00ecnh, h\u1ecfi v\u00f4n k\u1ebf n\u00e0o m\u1eafc sai?","select":["A. H\u00ecnh A","B. H\u00ecnh B","C. H\u00ecnh C","D. H\u00ecnh D"],"hint":"","explain":"<span class='basic_left'>V\u00f4n k\u1ebf ph\u1ea3i m\u1eafc song song v\u1edbi thi\u1ebft b\u1ecb c\u1ea7n \u0111o.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2546},{"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/bai26/lv2/img\/h4.jpg'\/><\/center> Trong c\u00e1c m\u1ea1ch tr\u00ean h\u00ecnh, khi ch\u01b0a \u0111\u00f3ng kh\u00f3a K, s\u1ed1 ch\u1ec9 c\u1ee7a v\u00f4n k\u1ebf n\u00e0o kh\u00e1c kh\u00f4ng?","select":["A. H\u00ecnh A","B. H\u00ecnh B","C. H\u00ecnh C","D. H\u00ecnh D"],"hint":"","explain":"<span class='basic_left'>Khi ch\u01b0a \u0111\u00f3ng kh\u00f3a K, v\u00f4n k\u1ebf tr\u00ean h\u00ecnh C \u0111\u00e3 n\u1ed1i v\u00e0o 2 \u0111\u1ea7u c\u1ee7a ngu\u1ed3n, s\u1ebd \u0111o \u0111\u01b0\u1ee3c hi\u1ec7u \u0111i\u1ec7n th\u1ebf c\u1ee7a ngu\u1ed3n. V\u1eady trong c\u00e1c m\u1ea1ch tr\u00ean h\u00ecnh, khi ch\u01b0a \u0111\u00f3ng kh\u00f3a K, s\u1ed1 ch\u1ec9 c\u1ee7a v\u00f4n k\u1ebf \u1edf h\u00ecnh C kh\u00e1c kh\u00f4ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2547},{"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":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai26/lv2/img\/h4.jpg'\/><\/center>\u0110\u1ec3 \u0111o c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n tr\u1edf, ng\u01b0\u1eddi ta thay v\u00f4n k\u1ebf b\u1eb1ng ampe k\u1ebf. N\u00ean thay v\u00f4n k\u1ebf th\u00e0nh ampe k\u1ebf \u1edf m\u1ea1ch n\u00e0o?","select":["A. H\u00ecnh A","B. H\u00ecnh B","C. H\u00ecnh C","D. H\u00ecnh D"],"hint":"","explain":"<span class='basic_left'>Mu\u1ed1n \u0111o c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n, ampe k\u1ebf ph\u1ea3i m\u1eafc n\u1ed1i ti\u1ebfp v\u1edbi thi\u1ebft b\u1ecb c\u1ea7n do. N\u00ean thay v\u00f4n k\u1ebf th\u00e0nh ampe k\u1ebf \u1edf m\u1ea1ch D.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2548},{"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/bai26/lv2/img\/h5.jpg'\/><\/center>Cho s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n nh\u01b0 h\u00ecnh tr\u00ean","select":["A. Gi\u00e1 tr\u1ecb c\u1ee7a ${{V}_{3}}$ l\u00e0 hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u ngu\u1ed3n","B. Gi\u00e1 tr\u1ecb c\u1ee7a ${{V}_{1}}$ l\u00e0 hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u \u0111\u00e8n 3","C. Gi\u00e1 tr\u1ecb c\u1ee7a ${{V}_{2}}$ l\u00e0 hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u \u0111\u00e8n 2","D. Gi\u00e1 tr\u1ecb c\u1ee7a ${{V}_{2}}$ l\u00e0 hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u \u0111\u00e8n 1 v\u00e0 \u0111\u00e8n 2"],"hint":"","explain":"<span class='basic_left'> T\u1eeb h\u00ecnh v\u1ebd ta th\u1ea5y gi\u00e1 tr\u1ecb c\u1ee7a ${{V}_{2}}$ l\u00e0 hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u \u0111\u00e8n 2.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2549},{"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":"<center><img src='https://www.luyenthi123.com/file/luyenthi123/lop7/vatly/bai26/lv2/img\/h6.jpg'\/><\/center>V\u00f4n k\u1ebf trong s\u01a1 \u0111\u1ed3 n\u00e0o h\u00ecnh tr\u00ean \u0111\u00e2y c\u00f3 s\u1ed1 ch\u1ec9 b\u1eb1ng 0?","select":["A. H\u00ecnh a","B. H\u00ecnh b","C. H\u00ecnh c","D. H\u00ecnh d"],"hint":"","explain":"<span class='basic_left'>M\u1ea1ch n\u1ed1i v\u1edbi v\u00f4n k\u1ebf b\u1ecb h\u1edf n\u00ean v\u00f4n k\u1ebf ch\u1ec9 s\u1ed1 kh\u00f4ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2550}],"lesson":{"save":0,"level":2}}