{"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":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng:<br\/>Ngu\u1ed3n \u0111i\u1ec7n t\u1ea1o ra gi\u1eefa hai c\u1ef1c c\u1ee7a n\u00f3 m\u1ed9t\u2026\u2026\u2026\u2026\u2026\u2026 ","select":["A. \u0110i\u1ec7n th\u1ebf","B. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf","C. C\u01b0\u1eddng \u0111\u1ed9 \u0111i\u1ec7n th\u1ebf","D. C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n"],"hint":"","explain":"<span class='basic_left'>Ngu\u1ed3n \u0111i\u1ec7n t\u1ea1o ra gi\u1eefa hai c\u1ef1c c\u1ee7a n\u00f3 m\u1ed9t hi\u1ec7u \u0111i\u1ec7n th\u1ebf.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2511},{"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":"Hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng:","select":["A. Ampe k\u1ebf","B. V\u00f4n k\u1ebf","C. \u0110i\u1ec7n k\u1ebf","D. \u00c1p k\u1ebf"],"hint":"","explain":"<span class='basic_left'>Hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng v\u00f4n k\u1ebf.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2512},{"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\u01a1n v\u1ecb \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf l\u00e0:","select":["A. Jun ","B. Ampe","C. V\u00f4n","D. Niu \u2013 t\u01a1n"],"hint":"","explain":"<span class='basic_left'>\u0110\u01a1n v\u1ecb \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf l\u00e0 v\u00f4n. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2513},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[2]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u sai: ","select":["A. 1V = 1000mV","B. 1kV = 1000mV","C. 1mV = 0,001V","D. 1000V = 1kV"],"hint":"","explain":"<span class='basic_left'>1kV = 1000V<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2514},{"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":"Tr\u00ean v\u00f4n k\u1ebf, \u1edf c\u00e1c ch\u1ed1t n\u1ed1i d\u00e2y c\u00f3 k\u00ed hi\u1ec7u d\u1ea5u (+) v\u00e0 d\u1ea5u (-). D\u1ea5u (+) ph\u1ea3i \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi\u2026\u2026\u2026\u2026\u2026c\u1ee7a ngu\u1ed3n, d\u1ea5u (-) ph\u1ea3i n\u1ed1i v\u1edbi\u2026\u2026\u2026c\u1ee7a ngu\u1ed3n","select":["A. C\u1ef1c \u00e2m, c\u1ef1c d\u01b0\u01a1ng","B. C\u1ef1c \u00e2m, c\u1ef1c \u00e2m","C. C\u1ef1c d\u01b0\u01a1ng, c\u1ef1c \u00e2m","D. C\u1ef1c d\u01b0\u01a1ng, c\u1ef1c d\u01b0\u01a1ng"],"hint":"","explain":"<span class='basic_left'>Tr\u00ean v\u00f4n k\u1ebf, \u1edf c\u00e1c ch\u1ed1t n\u1ed1i d\u00e2y c\u00f3 k\u00ed hi\u1ec7u d\u1ea5u (+) v\u00e0 d\u1ea5u (-). D\u1ea5u (+) ph\u1ea3i \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi c\u1ef1c d\u01b0\u01a1ng c\u1ee7a ngu\u1ed3n, d\u1ea5u (-) ph\u1ea3i n\u1ed1i v\u1edbi c\u1ef1c \u00e2m c\u1ee7a ngu\u1ed3n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2515},{"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\u1ed1i v\u1edbi pin tr\u00f2n (pin con th\u1ecf) th\u01b0\u1eddng s\u1eed d\u1ee5ng trong c\u00e1c \u0111\u1ed3ng h\u1ed3 treo t\u01b0\u1eddng trong nh\u00e0, gi\u00e1 tr\u1ecb hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai c\u1ef1c l\u00e0:","select":["A. 1,5 V ","B. 3,0 V ","C. 6,0 V ","D. 9,0 V"],"hint":"","explain":"<span class='basic_left'> \u0110\u1ed1i v\u1edbi pin tr\u00f2n (pin con th\u1ecf) th\u01b0\u1eddng s\u1eed d\u1ee5ng trong c\u00e1c \u0111\u1ed3ng h\u1ed3 treo t\u01b0\u1eddng trong nh\u00e0, gi\u00e1 tr\u1ecb hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai c\u1ef1c l\u00e0 1,5V<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2516},{"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/bai25/lv2/img\/h0.jpg'\/><\/center>\u0110\u1ed1i v\u1edbi lo\u1ea1i pin vu\u00f4ng nh\u01b0 h\u00ecnh tr\u00ean, gi\u00e1 tr\u1ecb hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai c\u1ef1c c\u1ee7a n\u00f3 l\u00e0:","select":["A. 1,5 V","B. 3,0 V","C. 6,0 V","D. 9,0 V"],"hint":"","explain":"<span class='basic_left'>Gi\u00e1 tr\u1ecb hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai c\u1ef1c c\u1ee7a n\u00f3 l\u00e0 9V<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2517},{"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":"Gi\u1eefa hai l\u1ed7 c\u1ee7a \u1ed5 \u0111i\u1ec7n l\u1ea5y trong m\u1ea1ng \u0111i\u1ec7n gia \u0111\u00ecnh \u1edf Vi\u1ec7t Nam, th\u00f4ng th\u01b0\u1eddng c\u00f3 gi\u00e1 tr\u1ecb hi\u1ec7u \u0111i\u1ec7n th\u1ebf l\u00e0:","select":["A. 100V","B. 200V","C. 220V","D. 380V"],"hint":"","explain":"<span class='basic_left'>Gi\u1eefa hai l\u1ed7 c\u1ee7a \u1ed5 \u0111i\u1ec7n l\u1ea5y trong m\u1ea1ng \u0111i\u1ec7n gia \u0111\u00ecnh \u1edf Vi\u1ec7t Nam, th\u00f4ng th\u01b0\u1eddng c\u00f3 gi\u00e1 tr\u1ecb hi\u1ec7u \u0111i\u1ec7n th\u1ebf l\u00e0 220V, ngo\u00e0i ra m\u1ed9t s\u1ed1 gia \u0111\u00ecnh c\u00f3 th\u1ec3 l\u1eafp th\u00eam \u0111i\u1ec7n 110V \u0111\u1ec3 s\u1eed d\u1ee5ng c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n ch\u1ea1y 110V (nh\u01b0 \u0111\u1ed3 gia d\u1ee5ng c\u1ee7a Nh\u1eadt) .<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2518},{"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\/>Mu\u1ed1n \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u \u0111o\u1ea1n m\u1ea1ch, ta ph\u1ea3i m\u1eafc v\u00f4n k\u1ebf\u2026\u2026\u2026\u2026.v\u1edbi \u0111o\u1ea1n m\u1ea1ch \u0111\u00f3","select":["A. N\u1ed1i ti\u1ebfp ","B. Song song","C. H\u1ed7n h\u1ee3p","D. T\u00f9y \u00fd"],"hint":"","explain":"<span class='basic_left'>Mu\u1ed1n \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u \u0111o\u1ea1n m\u1ea1ch, ta ph\u1ea3i m\u1eafc v\u00f4n k\u1ebf song song v\u1edbi \u0111o\u1ea1n m\u1ea1ch \u0111\u00f3.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2519},{"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 \u1ed5 c\u1eafm \u0111i\u1ec7n trong nh\u00e0, ta ph\u1ea3i ch\u1ec9nh gi\u1ea3i \u0111o tr\u00ean v\u00f4n k\u1ebf c\u00f3 gi\u1edbi h\u1ea1n \u0111o:","select":["A. \u0110i\u1ec7n m\u1ed9t chi\u1ec1u (DC), GH\u0110 b\u1eb1ng 220 V","B. \u0110i\u1ec7n xoay chi\u1ec1u (AC), GH\u0110 nh\u1ecf h\u01a1n 220 V","C. \u0110i\u1ec7n m\u1ed9t chi\u1ec1u (DC), GH\u0110 l\u1edbn h\u01a1n 220 V","D. \u0110i\u1ec7n xoay chi\u1ec1u (AC), GH\u0110 l\u1edbn h\u01a1n 220 V"],"hint":"","explain":"<span class='basic_left'>Mu\u1ed1n \u0111o hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u \u1ed5 c\u1eafm \u0111i\u1ec7n trong nh\u00e0, ta ph\u1ea3i ch\u1ec9nh giai \u0111o tr\u00ean v\u00f4n k\u1ebf c\u00f3 gi\u1edbi h\u1ea1n \u0111o \u0111i\u1ec7n xoay chi\u1ec1u (AC), GH\u0110 l\u1edbn h\u01a1n 220 V<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2520},{"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/bai25/lv2/img\/h1.jpg'\/><\/center>Hai c\u1ee5c pin tr\u00f2n c\u00f3 s\u1ed1 v\u00f4n ghi tr\u00ean v\u1ecf m\u1ed7i c\u1ee5c pin l\u00e0 1,5V, n\u1ebfu m\u1eafc ch\u00fang nh\u01b0 h\u00ecnh tr\u00ean th\u00ec s\u1ed1 ch\u1ec9 c\u1ee7a v\u00f4n k\u1ebf l\u00e0 bao nhi\u00eau?","select":["A. 1,5V","B. 3,0V","C. 0,0V","D. 2,5V"],"hint":"","explain":"<span class='basic_left'>hai c\u1ee5c pin m\u1eafc n\u1ed1i ti\u1ebfp v\u00e0 v\u00f4n k\u1ebf m\u1eafc v\u00e0o 2 \u0111\u1ea7u pin n\u00ean \u0111i\u1ec7n \u00e1p \u0111o \u0111\u01b0\u1ee3c b\u1eb1ng t\u1ed5ng hi\u1ec7u \u0111i\u1ec7n th\u1ebf tr\u00ean m\u1ed7i qu\u1ea3 pin.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2521},{"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/bai25/lv2/img\/h2.jpg'\/><\/center>Hai c\u1ee5c pin tr\u00f2n c\u00f3 s\u1ed1 v\u00f4n ghi tr\u00ean v\u1ecf m\u1ed7i c\u1ee5c pin l\u00e0 1,5V, n\u1ebfu m\u1eafc ch\u00fang nh\u01b0 h\u00ecnh tr\u00ean th\u00ec s\u1ed1 ch\u1ec9 c\u1ee7a v\u00f4n k\u1ebf l\u00e0 bao nhi\u00eau?","select":["A. 1,5V","B. 3,0V","C. 0,0V","D. 2,5V"],"hint":"","explain":"<span class='basic_left'>Hai c\u1ee5c pin m\u1eafc song song v\u00e0 v\u00f4n k\u1ebf m\u1eafc v\u00e0o hai \u0111\u1ea7u pin n\u00ean \u0111i\u1ec7n \u00e1p \u0111o \u0111\u01b0\u1ee3c b\u1eb1ng ch\u00ednh hi\u1ec7u \u0111i\u1ec7n th\u1ebf tr\u00ean m\u1ed7i qu\u1ea3 pin.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":2522},{"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/bai25/lv2/img\/h3.jpg'\/><\/center>Hai c\u1ee5c pin tr\u00f2n c\u00f3 s\u1ed1 v\u00f4n ghi tr\u00ean v\u1ecf m\u1ed7i c\u1ee5c pin l\u00e0 1,5V, n\u1ebfu m\u1eafc ch\u00fang nh\u01b0 h\u00ecnh tr\u00ean th\u00ec s\u1ed1 ch\u1ec9 c\u1ee7a v\u00f4n k\u1ebf l\u00e0 bao nhi\u00eau?","select":["A. 1,5V","B. 3,0V","C. 0,0V","D. 2,5V"],"hint":"","explain":"<span class='basic_left'>V\u00f4n k\u1ebf m\u1eafc v\u00e0o c\u1ea3 hai c\u1ef1c d\u01b0\u01a1ng c\u1ee7a hai vi\u00ean pin n\u00ean hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u0111o \u0111\u01b0\u1ee3c b\u1eb1ng kh\u00f4ng. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2523},{"time":24,"part":[{"title":"","title_trans":"","temp":"multiple_choice","correct":[[3]],"list":[{"point":5,"ques":"Ch\u1ecdn c\u00e2u sai: ","select":["A. 100 kV = 100.000 V","B. 220 V = 0,22 kV","C. 0,5 V = 50 mV","D. 1500 mV = 1,5 V"],"hint":"","explain":"<span class='basic_left'>0,5 V = 500 mV<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":2524},{"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":"Ch\u1ecdn ph\u00e1t bi\u1ec3u \u0111\u00fang nh\u1ea5t:","select":["A. S\u1ed1 v\u00f4n ghi tr\u00ean m\u1ed7i ngu\u1ed3n \u0111i\u1ec7n l\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai c\u1ef1c c\u1ee7a n\u00f3","B. S\u1ed1 v\u00f4n ghi tr\u00ean m\u1ed7i ngu\u1ed3n \u0111i\u1ec7n l\u00e0 gi\u00e1 tr\u1ecb c\u1ee7a hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai c\u1ef1c c\u1ee7a n\u00f3 khi \u0111\u00e3 m\u1eafc v\u00e0o m\u1ea1ch \u0111i\u1ec7n","C. S\u1ed1 v\u00f4n ghi tr\u00ean m\u1ed7i ngu\u1ed3n \u0111i\u1ec7n l\u00e0 gi\u00e1 tr\u1ecb hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai c\u1ef1c c\u1ee7a n\u00f3 khi ch\u01b0a m\u1eafc v\u00e0o m\u1ea1ch \u0111i\u1ec7n"],"hint":"","explain":"<span class='basic_left'>S\u1ed1 v\u00f4n ghi tr\u00ean m\u1ed7i ngu\u1ed3n \u0111i\u1ec7n l\u00e0 gi\u00e1 tr\u1ecb hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai c\u1ef1c c\u1ee7a n\u00f3 khi ch\u01b0a m\u1eafc v\u00e0o 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":2525},{"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":"V\u00f4lta l\u00e0:","select":["A. \u0110\u01a1n v\u1ecb c\u1ee7a hi\u1ec7u \u0111i\u1ec7n th\u1ebf","B. T\u00ean c\u1ee7a m\u1ed9t lo\u1ea1i pin kh\u00f4","C. T\u00ean c\u1ee7a nh\u00e0 v\u1eadt l\u00ed h\u1ecdc I-ta-li-a","D. C\u00e2u B v\u00e0 C \u0111\u00fang"],"hint":"","explain":"<span class='basic_left'>B\u00e1 t\u01b0\u1edbc Alessandro Giuseppe Antonio Anastasio Volta l\u00e0 m\u1ed9t nh\u00e0 v\u1eadt l\u00fd ng\u01b0\u1eddi \u00dd. \u00d4ng l\u00e0 ng\u01b0\u1eddi \u0111\u00e3 c\u00f3 c\u00f4ng ph\u00e1t minh ra pin \u0111i\u1ec7n v\u00e0 t\u00ean c\u1ee7a \u00f4ng \u0111\u01b0\u1ee3c \u0111\u1eb7t cho \u0111\u01a1n v\u1ecb \u0111i\u1ec7n th\u1ebf volt (k\u00fd hi\u1ec7u V, th\u01b0\u1eddng \u0111\u1ecdc l\u00e0 v\u00f4n). Ngo\u00e0i ra t\u00ean c\u1ee7a \u00f4ng c\u0169ng \u0111\u01b0\u1ee3c \u0111\u1eb7t cho m\u1ed9t lo\u1ea1i pin kh\u00f4.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":2526},{"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":"Ch\u1ecdn ph\u00e1t bi\u1ec3u \u0111\u00fang","select":["A. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u b\u00f3ng \u0111\u00e8n c\u00e0ng nh\u1ecf th\u00ec d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua b\u00f3ng \u0111\u00e8n c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 c\u00e0ng l\u1edbn","B. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u b\u00f3ng \u0111\u00e8n c\u00e0ng l\u1edbn th\u00ec d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua b\u00f3ng \u0111\u00e8n c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 c\u00e0ng nh\u1ecf","C. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u b\u00f3ng \u0111\u00e8n b\u1eb1ng kh\u00f4ng th\u00ec d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua b\u00f3ng \u0111\u00e8n c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 b\u1eb1ng kh\u00f4ng","D. Hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u b\u00f3ng \u0111\u00e8n kh\u00e1c kh\u00f4ng th\u00ec kh\u00f4ng c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua b\u00f3ng \u0111\u00e8n"],"hint":"","explain":"<span class='basic_left'>Hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u b\u00f3ng \u0111\u00e8n b\u1eb1ng kh\u00f4ng th\u00ec d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua b\u00f3ng \u0111\u00e8n c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 b\u1eb1ng kh\u00f4ng<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2527},{"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":"N\u1ed1i v\u00f4n k\u1ebf v\u1edbi hai \u0111\u1ea7u c\u1ee7a b\u00f3ng \u0111\u00e8n tr\u00f2n ch\u01b0a s\u1eed d\u1ee5ng, tr\u00ean b\u00f3ng c\u00f3 ghi 220V","select":["A. V\u00f4n k\u1ebf ch\u1ec9 gi\u00e1 tr\u1ecb 110V","B. V\u00f4n k\u1ebf ch\u1ec9 gi\u00e1 tr\u1ecb 220V","C. V\u00f4n k\u1ebf ch\u1ec9 gi\u00e1 tr\u1ecb 0V","D. V\u00f4n k\u1ebf ch\u1ec9 gi\u00e1 tr\u1ecb b\u1ea5t k\u00ec kh\u00e1c kh\u00f4ng"],"hint":"","explain":"<span class='basic_left'>B\u00f3ng \u0111\u00e8n tr\u00f2n ch\u01b0a s\u1eed d\u1ee5ng n\u00ean hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa hai \u0111\u1ea7u c\u1ee7a n\u00f3 b\u1eb1ng kh\u00f4ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":2528},{"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":"Khi g\u1eafn b\u00f3ng \u0111\u00e8n tr\u00f2n c\u00f3 ghi 110V v\u00e0o hi\u1ec7u \u0111i\u1ec7n th\u1ebf 220V. Hi\u1ec7n t\u01b0\u1ee3ng n\u00e0o sau \u0111\u00e2y x\u1ea3y ra:","select":["A. \u0110\u00e8n kh\u00f4ng s\u00e1ng","B. \u0110\u00e8n l\u00f3e s\u00e1ng r\u1ed3i b\u1ecb \u0111\u1ee9t","C. \u0110\u00e8n s\u00e1ng y\u1ebfu","D. \u0110\u00e8n s\u00e1ng b\u00ecnh th\u01b0\u1eddng"],"hint":"","explain":"<span class='basic_left'>V\u00ec \u0111i\u1ec7n \u00e1p \u0111\u1eb7t v\u00e0o l\u1edbn qu\u00e1 m\u1ee9c so v\u1edbi \u0111i\u1ec7n \u00e1p cho ph\u00e9p n\u00ean \u0111\u00e8n b\u1ecb ch\u00e1y.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":2529},{"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":"T\u00e1c d\u1ee5ng c\u1ee7a \u1ed5n \u00e1p l\u00e0 g\u00ec?","select":["A. T\u0103ng hi\u1ec7u \u0111i\u1ec7n th\u1ebf","B. Gi\u1ea3m hi\u1ec7u \u0111i\u1ec7n th\u1ebf","C. \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ec3 lu\u00f4n c\u00f3 hi\u1ec7u \u0111i\u1ec7n th\u1ebf b\u1eb1ng hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u0111\u1ecbnh m\u1ee9c","D. \u0110i\u1ec1u ch\u1ec9nh \u0111\u1ec3 lu\u00f4n c\u00f3 hi\u1ec7u \u0111i\u1ec7n th\u1ebf nh\u1ecf h\u01a1n hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u0111\u1ecbnh m\u1ee9c"],"hint":"","explain":"<span class='basic_left'>T\u00e1c d\u1ee5ng c\u1ee7a \u1ed5n \u00e1p l\u00e0 \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 lu\u00f4n c\u00f3 hi\u1ec7u \u0111i\u1ec7n th\u1ebf b\u1eb1ng hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u0111\u1ecbnh m\u1ee9c. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":2530}],"lesson":{"save":0,"level":2}}