{"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":"R\u00f4to c\u1ee7a m\u1ed9t \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u trong k\u1ef9 thu\u1eadt \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o nh\u01b0 th\u1ebf n\u00e0o?","select":["A. L\u00e0 m\u1ed9t nam ch\u00e2m v\u0129nh c\u1eedu c\u00f3 tr\u1ee5c quay.","B. L\u00e0 m\u1ed9t nam ch\u00e2m \u0111i\u1ec7n c\u00f3 tr\u1ee5c quay.","C. L\u00e0 m\u1ed9t cu\u1ed9n d\u00e2y d\u1eabn c\u00f3 th\u1ec3 quay quay quanh c\u00f9ng m\u1ed9t tr\u1ee5c.","D. L\u00e0 nhi\u1ec1u cu\u1ed9n d\u00e2y d\u1eabn qu\u1ea5n quanh m\u1ed9t l\u00f5i th\u00e9p g\u1eafn v\u1edbi v\u1ecf m\u00e1y."],"hint":"","explain":"<span class='basic_left'>Trong \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n k\u1ef9 thu\u1eadt, b\u1ed9 ph\u1eadn t\u1ea1o ta t\u1eeb tr\u01b0\u1eddng l\u00e0 nam ch\u00e2m \u0111i\u1ec7n c\u00f3 tr\u1ee5c quay.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":3191},{"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 cho \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n quay \u0111\u01b0\u1ee3c, cho ta c\u01a1 n\u0103ng th\u00ec ph\u1ea3i cung c\u1ea5p cho n\u00f3 n\u0103ng l\u01b0\u1ee3ng d\u01b0\u1edbi d\u1ea1ng n\u00e0o?","select":["A. \u0110\u1ed9ng n\u0103ng.","B. Th\u1ebf n\u0103ng.","C. Nhi\u1ec7t n\u0103ng.","D. \u0110i\u1ec7n n\u0103ng."],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean t\u00e1c d\u1ee5ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng l\u00ean khung d\u00e2y d\u1eabn c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua \u0111\u1eb7t trong t\u1eeb tr\u01b0\u1eddng. Khi ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u bi\u1ebfn \u0111i\u1ec7n n\u0103ng c\u1ee7a d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u th\u00e0nh c\u01a1 n\u0103ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3192},{"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":"\u01afu \u0111i\u1ec3m n\u00e0o d\u01b0\u1edbi \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 \u01b0u \u0111i\u1ec3m c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n?","select":["A. Kh\u00f4ng th\u1ea3i ra ngo\u00e0i c\u00e1c ch\u1ea5t kh\u00ed hay h\u01a1i l\u00e0m \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng xung quanh.","B. C\u00f3 th\u1ec3 c\u00f3 c\u00f4ng su\u1ea5t t\u1eeb v\u00e0i o\u00e1t \u0111\u1ebfn h\u00e0ng tr\u0103m, h\u00e0ng ng\u00e0n, ch\u1ee5c ng\u00e0n kil\u00f4oat.","C. Hi\u1ec7u su\u1ea5t r\u1ea5t cao, c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 98%.","D. C\u00f3 th\u1ec3 bi\u1ebfn \u0111\u1ed5i tr\u1ef1c ti\u1ebfp n\u0103ng l\u01b0\u1ee3ng c\u1ee7a nhi\u00ean li\u1ec7u th\u00e0nh c\u01a1 n\u0103ng."],"hint":"","explain":"<span class='basic_left'>\u01afu \u0111i\u1ec3m c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n:<br\/>Kh\u00f4ng th\u1ea3i ra ngo\u00e0i c\u00e1c ch\u1ea5t kh\u00ed hay h\u01a1i l\u00e0m \u00f4 nhi\u1ec5m m\u00f4i tr\u01b0\u1eddng xung quanh.<br\/>C\u00f3 th\u1ec3 c\u00f3 c\u00f4ng su\u1ea5t t\u1eeb v\u00e0i o\u00e1t \u0111\u1ebfn h\u00e0ng tr\u0103m, h\u00e0ng ng\u00e0n, ch\u1ee5c ng\u00e0n kil\u00f4oat.<br\/>Hi\u1ec7u su\u1ea5t r\u1ea5t cao, c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 98%.<br\/>N\u00ean \u01b0u \u0111i\u1ec3m kh\u00f4ng ph\u1ea3i c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n: C\u00f3 th\u1ec3 bi\u1ebfn \u0111\u1ed5i tr\u1ef1c ti\u1ebfp n\u0103ng l\u01b0\u1ee3ng c\u1ee7a nhi\u00ean li\u1ec7u th\u00e0nh c\u01a1 n\u0103ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":3193},{"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":"\u0110i\u1ec1u n\u00e0o sau \u0111\u00e2y l\u00e0 sai khi n\u00f3i v\u1ec1 c\u1ea5u t\u1ea1o c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u trong th\u1ef1c t\u1ebf ?","select":["A. Tr\u1ee5 s\u1eaft l\u00e0 do m\u1ed9t s\u1ed1 l\u1edbn c\u00e1c l\u00e1 s\u1eaft \u0111\u1eb7c bi\u1ec7t g\u1ecdi l\u00e0 t\u00f4n sil\u00edc gh\u00e9p c\u00e1ch \u0111i\u1ec7n v\u1edbi nhau h\u1ee3p th\u00e0nh.","B. R\u00f4to g\u1ed3m nhi\u1ec1u khung d\u00e2y \u0111\u1eb7t trong c\u00e1c r\u00e3nh x\u1ebb d\u1ecdc theo m\u1eb7t ngo\u00e0i c\u1ee7a m\u1ed9t tr\u1ee5 s\u1eaft.","C. C\u1ed5 g\u00f3p \u0111i\u1ec7n lu\u00f4n g\u1eafn \u1edf \u0111\u1ea7u c\u00e1c khung d\u00e2y.","D. Stato c\u1ee7a \u0111\u1ed9ng c\u01a1 l\u00e0m b\u1eb1ng nam ch\u00e2m v\u0129nh c\u1eedu."],"hint":"","explain":"<span class='basic_left'>C\u1ea5u t\u1ea1o c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u trong th\u1ef1c t\u1ebf:<br\/>Trong \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n k\u1ef9 thu\u1eadt, b\u1ed9 ph\u1eadn t\u1ea1o ta t\u1eeb tr\u01b0\u1eddng l\u00e0 nam ch\u00e2m \u0111i\u1ec7n.<br\/>B\u1ed9 ph\u1eadn quay c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n k\u1ef9 thu\u1eadt kh\u00f4ng \u0111\u01a1n gi\u1ea3n l\u00e0 m\u1ed9t khung d\u00e2y m\u00e0 g\u1ed3m nhi\u1ec1u cu\u1ed9n d\u00e2y \u0111\u1eb7t l\u1ec7ch nhau v\u00e0 song song v\u1edbi tr\u1ee5c c\u1ee7a m\u1ed9t kh\u1ed1i tr\u1ee5 l\u00e0m b\u1eb1ng c\u00e1c l\u00e1 th\u00e9p k\u1ef9 thu\u1eadt gh\u00e9p l\u1ea1i.<br\/>N\u00ean \u0111i\u1ec1u sai khi n\u00f3i v\u1ec1 c\u1ea5u t\u1ea1o c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u trong th\u1ef1c t\u1ebf: Stato c\u1ee7a \u0111\u1ed9ng c\u01a1 l\u00e0m b\u1eb1ng nam ch\u00e2m v\u0129nh c\u1eedu.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":3194},{"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":"\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean t\u00e1c d\u1ee5ng n\u00e0o d\u01b0\u1edbi \u0111\u00e2y?","select":["A. T\u00e1c d\u1ee5ng c\u1ee7a d\u00f2ng \u0111i\u1ec7n l\u00ean d\u00e2y d\u1eabn th\u1eb3ng c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua.","B. Kh\u1ea3 n\u0103ng gi\u1eef \u0111\u01b0\u1ee3c t\u1eeb t\u00ednh l\u00e2u d\u00e0i c\u1ee7a th\u00e9p.","C. S\u1ef1 nhi\u1ec5m t\u1eeb c\u1ee7a s\u1eaft, th\u00e9p.","D. T\u00e1c d\u1ee5ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng l\u00ean khung d\u00e2y d\u1eabn c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua."],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u ho\u1ea1t \u0111\u1ed9ng d\u1ef1a tr\u00ean t\u00e1c d\u1ee5ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng l\u00ean khung d\u00e2y d\u1eabn c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua \u0111\u1eb7t trong t\u1eeb tr\u01b0\u1eddng. Khi ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u bi\u1ebfn \u0111i\u1ec7n n\u0103ng c\u1ee7a d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u th\u00e0nh c\u01a1 n\u0103ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":3195},{"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":"\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u quay \u0111\u01b0\u1ee3c t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c n\u00e0o","select":["A. L\u1ef1c h\u1ea5p d\u1eabn","B. L\u1ef1c \u0111\u00e0n h\u1ed3i.","C. L\u1ef1c t\u1eeb","D. L\u1ef1c \u0111i\u1ec7n t\u1eeb"],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u quay \u0111\u01b0\u1ee3c t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c \u0111i\u1ec7n t\u1eeb.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3196},{"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":"C\u00e1c ph\u00e1t bi\u1ec3u sau \u0111\u00e2y, ph\u00e1t bi\u1ec3u n\u00e0o \u0111\u00fang khi n\u00f3i v\u1ec1 \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u?","select":["A. Ph\u1ea7n \u1ee9ng: l\u00e0 ph\u1ea7n quay, ph\u1ea7n c\u1ea3m \u1ee9ng \u0111\u1ee9ng y\u00ean.","B. R\u00f4t\u00f4 l\u00e0 ph\u1ea7n c\u1ea3m, stato l\u00e0 ph\u1ea7n \u1ee9ng.","C. R\u00f4t\u00f4 l\u00e0 ph\u1ea7n \u0111\u1ee9ng y\u00ean, stato l\u00e0 ph\u1ea7n quay.","D. R\u00f4t\u00f4 l\u00e0 ph\u1ea7n quay, stato l\u00e0 ph\u1ea7n \u0111\u1ee9ng y\u00ean."],"hint":"","explain":"<span class='basic_left'>V\u1edbi \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u r\u00f4t\u00f4 l\u00e0 ph\u1ea7n quay, stato l\u00e0 ph\u1ea7n \u0111\u1ee9ng y\u00ean.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":1}]}],"id_ques":3197},{"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\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u g\u1ed3m c\u00e1c b\u1ed9 ph\u1eadn ch\u00ednh n\u00e0o sau \u0111\u00e2y t\u1ea1o th\u00e0nh?","select":["A. B\u1ed9 g\u00f3p \u0111i\u1ec7n, khung d\u00e2y.","B. Nam ch\u00e2m v\u0129nh c\u1eedu v\u00e0 khung d\u00e2y d\u1eabn.","C. Nam ch\u00e2m v\u00e0 khung d\u00e2y d\u1eabn.","D. Nam ch\u00e2m \u0111i\u1ec7n v\u00e0 b\u1ed9 g\u00f3p \u0111i\u1ec7n."],"hint":"","explain":"<span class='basic_left'>C\u1ea5u t\u1ea1o c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n 1 chi\u1ec1u g\u1ed3m hai b\u1ed9 ph\u1eadn ch\u00ednh sau \u0111\u00e2y:<br\/>+ Nam ch\u00e2m<br\/>+ Khung d\u00e2y d\u1eabn.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":1}]}],"id_ques":3198},{"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":"Khi \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u ho\u1ea1t \u0111\u1ed9ng th\u00ec n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c chuy\u1ec3n h\u00f3a nh\u01b0 th\u1ebf n\u00e0o?","select":["A. C\u01a1 n\u0103ng th\u00e0nh th\u1ebf n\u0103ng.","B. Th\u1ebf n\u0103ng th\u00e0nh c\u01a1 n\u0103ng.","C. \u0110i\u1ec7n n\u0103ng th\u00e0nh c\u01a1 n\u0103ng.","D. C\u01a1 n\u0103ng th\u00e0nh \u0111i\u1ec7n n\u0103ng."],"hint":"","explain":"<span class='basic_left'>Khi \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u ho\u1ea1t \u0111\u1ed9ng th\u00ec \u0111i\u1ec7n n\u0103ng \u0111\u01b0\u1ee3c chuy\u1ec3n h\u00f3a th\u00e0nh c\u01a1 n\u0103ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3199},{"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":"B\u1ed9 ph\u1eadn n\u00e0o sau \u0111\u00e2y kh\u00f4ng c\u00f3 trong \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u: ","select":["A. B\u1ed9 g\u00f3p \u0111i\u1ec7n.","B. Nam ch\u00e2m.","C. Khung d\u00e2y d\u1eabn.","D. \u1ed0ng d\u00e2y."],"hint":"","explain":"<span class='basic_left'>\u1ed0ng d\u00e2y kh\u00f4ng c\u00f3 trong \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u: <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3200},{"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":"Khi \u0111\u1eb7t khung d\u00e2y d\u1eabn ABCD trong t\u1eeb tr\u01b0\u1eddng v\u00e0 cho d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua khung th\u00ec d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c n\u00e0o, khung d\u00e2y s\u1ebd quay?","select":["A. l\u1ef1c \u0111\u00e0n h\u1ed3i.","B. l\u1ef1c ma s\u00e1t.","C. l\u1ef1c \u0111i\u1ec7n t\u1eeb.","D. l\u1ef1c h\u1ea5p d\u1eabn."],"hint":"","explain":"<span class='basic_left'>Khi \u0111\u1eb7t khung d\u00e2y d\u1eabn ABCD trong t\u1eeb tr\u01b0\u1eddng v\u00e0 cho d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua khung th\u00ec d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a l\u1ef1c t\u1eeb, khung d\u00e2y s\u1ebd quay. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3201},{"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":"B\u1ed9 ph\u1eadn ch\u00ednh c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n g\u1ed3m nh\u1eefng th\u00e0nh ph\u1ea7n n\u00e0o v\u00e0 t\u00ean g\u1ecdi?","select":["A. Nam ch\u00e2m t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng g\u1ecdi l\u00e0 stato, khung d\u00e2y d\u1eabn cho d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua l\u00e0 roto.","B. Nam ch\u00e2m t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng g\u1ecdi l\u00e0 roto, khung d\u00e2y d\u1eabn cho d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua l\u00e0 stato.","C. B\u1ed9 g\u00f3p \u0111i\u1ec7n t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng g\u1ecdi l\u00e0 stato, khung d\u00e2y d\u1eabn cho d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua l\u00e0 roto.","D. Nam ch\u00e2m t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng g\u1ecdi l\u00e0 roto, b\u1ed9 g\u00f3p \u0111i\u1ec7n cho d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua l\u00e0 stato."],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n m\u1ed9t chi\u1ec1u g\u1ed3m c\u00e1c b\u1ed9 ph\u1eadn ch\u00ednh l\u00e0 nam ch\u00e2m t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng (b\u1ed9 ph\u1eadn \u0111\u1ee9ng y\u00ean) v\u00e0 khung d\u00e2y d\u1eabn cho d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua (b\u1ed9 ph\u1eadn quay). B\u1ed9 ph\u1eadn \u0111\u1ee9ng y\u00ean g\u1ecdi l\u00e0 stato, b\u1ed9 ph\u1eadn quay g\u1ecdi l\u00e0 roto.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":1}]}],"id_ques":3202},{"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":"Trong \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n k\u0129 thu\u1eadt, b\u1ed9 ph\u1eadn t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng l\u00e0:","select":["A. nam ch\u00e2m v\u0129nh c\u1eedu.","B. b\u1ed9 g\u00f3p \u0111i\u1ec7n.","C. d\u00e2y d\u1eabn th\u1eb3ng c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua.","D. nam ch\u00e2m \u0111i\u1ec7n."],"hint":"","explain":"<span class='basic_left'>Trong \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n k\u0129 thu\u1eadt, b\u1ed9 ph\u1eadn t\u1ea1o ra t\u1eeb tr\u01b0\u1eddng l\u00e0 nam ch\u00e2m \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3203},{"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":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng:<br\/>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n l\u00e0 \u0111\u1ed9ng c\u01a1 trong \u0111\u00f3: ........... chuy\u1ec3n h\u00f3a th\u00e0nh c\u01a1 n\u0103ng.","select":["A. H\u00f3a n\u0103ng.","B. Th\u1ebf n\u0103ng.","C. Nhi\u1ec7t n\u0103ng.","D. \u0110i\u1ec7n n\u0103ng."],"hint":"","explain":"<span class='basic_left'>\u0110i\u1ec7n n\u0103ng chuy\u1ec3n h\u00f3a th\u00e0nh c\u01a1 n\u0103ng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3204},{"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\/>\u0110\u1ed9ng c\u01a1 nhi\u1ec7t l\u00e0 \u0111\u1ed9ng c\u01a1 trong \u0111\u00f3: M\u1ed9t ph\u1ea7n n\u0103ng l\u01b0\u1ee3ng c\u1ee7a nhi\u00ean li\u1ec7u b\u1ecb \u0111\u1ed1t ch\u00e1y chuy\u1ec3n th\u00e0nh \u2026\u2026","select":["A. \u0110\u1ed9ng n\u0103ng.","B. C\u01a1 n\u0103ng.","C. Th\u1ebf n\u0103ng.","D. \u0110i\u1ec7n n\u0103ng."],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed9ng c\u01a1 nhi\u1ec7t l\u00e0 \u0111\u1ed9ng c\u01a1 trong \u0111\u00f3: M\u1ed9t ph\u1ea7n N\u0103ng l\u01b0\u1ee3ng c\u1ee7a nhi\u00ean li\u1ec7u b\u1ecb \u0111\u1ed1t ch\u00e1y chuy\u1ec3n th\u00e0nh c\u01a1 n\u0103ng. <br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":2}]}],"id_ques":3205},{"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":"\u0110i\u1ec1n t\u1eeb th\u00edch h\u1ee3p v\u00e0o ch\u1ed7 tr\u1ed1ng:<br\/>\u2026\u2026\u2026.. ho\u1ea1t \u0111\u1ed9ng d\u1ef1a v\u00e0o t\u00e1c d\u1ee5ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng l\u00ean d\u00f2ng \u0111i\u1ec7n \u0111\u1eb7t trong t\u1eeb tr\u01b0\u1eddng.","select":["A. \u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n.","B. Nam ch\u00e2m \u0111i\u1ec7n.","C. \u0110\u1ed9ng c\u01a1 nhi\u1ec7t.","D. Nam ch\u00e2m v\u0129nh c\u1eedu."],"hint":"","explain":"<span class='basic_left'>\u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u1ef1a v\u00e0o t\u00e1c d\u1ee5ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng l\u00ean d\u00f2ng \u0111i\u1ec7n \u0111\u1eb7t trong t\u1eeb tr\u01b0\u1eddng.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 A.<\/span><\/span> ","column":2}]}],"id_ques":3206},{"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":"Ph\u00e1t bi\u1ec3u n\u00e0o sau \u0111\u00e2y kh\u00f4ng \u0111\u00fang: ","select":["A. Nam ch\u00e2m \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u1ef1a v\u00e0o t\u00e1c d\u1ee5ng t\u1eeb c\u1ee7a d\u00f2ng \u0111i\u1ec7n.","B. Nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o d\u1ef1a v\u00e0o s\u1ef1 nhi\u1ec5m \u0111i\u1ec7n t\u1eeb c\u1ee7a s\u1eaft, th\u00e9p.","C. \u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n l\u00e0 \u0111\u1ed9ng c\u01a1 trong \u0111\u00f3: \u0110i\u1ec7n n\u0103ng chuy\u1ec3n h\u00f3a th\u00e0nh c\u01a1 n\u0103ng.","D. \u0110\u1ed9ng c\u01a1 \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng d\u1ef1a v\u00e0o t\u00e1c d\u1ee5ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng l\u00ean d\u00f2ng \u0111i\u1ec7n \u0111\u1eb7t trong t\u1eeb tr\u01b0\u1eddng."],"hint":"","explain":"<span class='basic_left'>Nam ch\u00e2m v\u0129nh c\u1eedu \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o d\u1ef1a v\u00e0o kh\u1ea3 n\u0103ng gi\u1eef \u0111\u01b0\u1ee3c t\u00ednh l\u00e2u d\u00e0i c\u1ee7a th\u00e9p sau khi b\u1ecb nhi\u1ec5m t\u1eeb.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":3207},{"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":"B\u1ed9 ph\u1eadn quay c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n k\u0129 thu\u1eadt c\u00f3:","select":["A. M\u1ed9t khung d\u00e2y.","B. M\u1ed9t cu\u1ed9n d\u00e2y.","C. Nhi\u1ec1u cu\u1ed9n d\u00e2y \u0111\u1eb7t c\u1ea1nh nhau v\u00e0 song song v\u1edbi tr\u1ee5c c\u1ee7a m\u1ed9t kh\u1ed1i tr\u1ee5 l\u00e0m b\u1eb1ng c\u00e1c l\u00e1 th\u00e9p k\u0129 thu\u1eadt gh\u00e9p l\u1ea1i.","D. Nhi\u1ec1u cu\u1ed9n d\u00e2y \u0111\u1eb7t l\u1ec7ch nhau v\u00e0 song song v\u1edbi tr\u1ee5c c\u1ee7a m\u1ed9t kh\u1ed1i tr\u1ee5 l\u00e0m b\u1eb1ng c\u00e1c l\u00e1 th\u00e9p k\u0129 thu\u1eadt gh\u00e9p l\u1ea1i."],"hint":"","explain":"<span class='basic_left'>B\u1ed9 ph\u1eadn quay c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n k\u0129 thu\u1eadt c\u00f3 nhi\u1ec1u cu\u1ed9n d\u00e2y \u0111\u1eb7t l\u1ec7ch nhau v\u00e0 song song v\u1edbi tr\u1ee5c c\u1ee7a m\u1ed9t kh\u1ed1i tr\u1ee5 l\u00e0m b\u1eb1ng c\u00e1c l\u00e1 th\u00e9p k\u0129 thu\u1eadt gh\u00e9p l\u1ea1i.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 D.<\/span><\/span> ","column":2}]}],"id_ques":3208},{"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/lop9/vatly/bai28/lv2/img\/h19.jpg'\/><\/center>Khung d\u00e2y trong h\u00ecnh 28.3 quay theo chi\u1ec1u n\u00e0o?","select":["A. C\u00f9ng chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3.","B. Ng\u01b0\u1ee3c chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3.","C. Kh\u00f4ng quay.","D. Quay m\u1ed9t v\u00f2ng ng\u01b0\u1ee3c r\u1ed3i m\u1ed9t v\u00f2ng c\u00f9ng chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3 r\u1ed3i l\u1eb7p l\u1ea1i."],"hint":"","explain":"<span class='basic_left'>L\u1ef1c t\u1eeb t\u00e1c d\u1ee5ng v\u00e0o d\u00e2y AB h\u01b0\u1edbng t\u1eeb tr\u00ean xu\u1ed1ng d\u01b0\u1edbi, l\u1ef1c t\u1eeb t\u00e1c d\u1ee5ng v\u00e0o d\u00e2y AB h\u01b0\u1edbng t\u1eeb d\u01b0\u1edbi l\u00ean tr\u00ean. V\u1eady n\u00ean khung d\u00e2y quay theo ng\u01b0\u1ee3c chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 B.<\/span><\/span> ","column":1}]}],"id_ques":3209},{"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":"\u1ee8ng d\u1ee5ng n\u00e0o sau \u0111\u00e2y kh\u00f4ng ph\u1ea3i c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n:","select":["A. M\u00e1y gi\u1eb7t.","B. M\u00e1y s\u1ea5y t\u00f3c.","C. Chu\u00f4ng \u0111i\u1ec7n.","D. T\u1ee7 l\u1ea1nh."],"hint":"","explain":"<span class='basic_left'>Chu\u00f4ng \u0111i\u1ec7n kh\u00f4ng ph\u1ea3i l\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a \u0111\u1ed9ng c\u01a1 \u0111i\u1ec7n, m\u00e0 l\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a nam ch\u00e2m \u0111i\u1ec7n.<br\/> <span class='basic_pink'>V\u1eady \u0111\u00e1p \u00e1n \u0111\u00fang l\u00e0 C.<\/span><\/span> ","column":2}]}],"id_ques":3210}],"lesson":{"save":0,"level":2}}