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{"id":26220,"date":"2018-04-10T16:28:10","date_gmt":"2018-04-10T09:28:10","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=26220"},"modified":"2018-04-10T16:28:10","modified_gmt":"2018-04-10T09:28:10","slug":"bai-tap-trac-nghiem-vat-li-12-cac-mach-dien-xoay-chieu","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-cac-mach-dien-xoay-chieu\/","title":{"rendered":"B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 12: C\u00e1c m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u"},"content":{"rendered":"

C\u00e2u 1:<\/b>\u00a0Tr\u00ean \u0111o\u1ea1n m\u1ea1ch xoay chi\u1ec1u t\u1ea7n s\u1ed1 50 Hz ch\u1ec9 c\u00f3 \u0111i\u1ec7n tr\u1edf thu\u1ea7n,<\/p>\n

A. pha c\u1ee7a c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n b\u1eb1ng 0.<\/p>\n

B. c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n trong m\u1ed7i gi\u00e2y c\u00f3 200 l\u1ea7n \u0111\u1ea1t gi\u00e1 tr\u1ecb b\u1eb1ng m\u1ed9t n\u1eeda gi\u00e1 tr\u1ecb c\u1ef1c \u0111\u1ea1i.<\/p>\n

C. c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n t\u1ee9c th\u1eddi kh\u00f4ng t\u1ec9 l\u1ec7 v\u1edbi \u0111i\u1ec7n \u00e1p t\u1ee9c th\u1eddi.<\/p>\n

D. c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n hi\u1ec1u d\u1ee5ng c\u00f3 gi\u00e1 tr\u1ecb b\u1eb1ng m\u1ed9t n\u1eeda c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n c\u1ef1c \u0111\u1ea1i.<\/p>\n

C\u00e2u 2:<\/b>\u00a0Cho d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 t\u1ee9c th\u1eddi l\u00e0<\/p>\n

\"\"<\/p>\n

(mA) qua \u0111i\u1ec7n tr\u1edf R = 50 Hz. Nhi\u1ec7t l\u01b0\u1ee3ng t\u1ecfa ra tr\u00ean R trong 2 s \u0111\u1ea7u l\u00e0<\/p>\n

A. 80 J \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. 0,08 J. \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C. 0,8 J \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. 0,16 J<\/p>\n

C\u00e2u 3:<\/b>\u00a0T\u00e1c d\u1ee5ng c\u1ea3n tr\u1edf d\u00f2ng \u0111i\u1ec7n c\u1ee7a cu\u1ed9n c\u1ea3m \u0111\u1ed1i v\u1edbi d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u \u0111\u00fang v\u1edbi tr\u01b0\u1eddng h\u1ee3p n\u00e0o n\u00eau d\u01b0\u1edbi \u0111\u00e2y?<\/p>\n

A. \u0110\u1ed1i v\u1edbi d\u00f2ng \u0111i\u1ec7n c\u00f3 t\u1ea7n s\u1ed1 c\u00e0ng l\u1edbn th\u00ec t\u00e1c d\u1ee5ng c\u1ea3n tr\u1edf c\u00e0ng l\u1edbn.<\/p>\n

B. \u0110\u1ed1i v\u1edbi d\u00f2ng \u0111i\u1ec7n c\u00f3 t\u1ea7n s\u1ed1 c\u00e0ng l\u1edbn th\u00ec t\u00e1c d\u1ee5ng c\u1ea3n tr\u1edf c\u00e0ng nh\u1ecf.<\/p>\n

C. Cu\u1ed9n c\u1ea3m c\u00f3 \u0111\u1ed9 t\u1ef1 c\u1ea3m c\u00e0ng nh\u1ecf th\u00ec t\u00e1c d\u1ee5ng c\u1ea3n tr\u1edf c\u00e0ng l\u1edbn.<\/p>\n

D. T\u00e1c d\u1ee5ng c\u1ea3n tr\u1edf d\u00f2ng \u0111i\u1ec7n kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o t\u1ea7n s\u1ed1 c\u1ee7a d\u00f2ng \u0111i\u1ec7n.<\/p>\n

C\u00e2u 4:<\/b>\u00a0\u0110\u1ec3 t\u0103ng dung kh\u00e1ng c\u1ee7a m\u1ed9t t\u1ee5 \u0111i\u1ec7n m\u00f4i l\u00e0 kh\u00f4ng kh\u00ed, ta c\u00f3 th\u1ec3<\/p>\n

A. t\u0103ng t\u1ea7n s\u1ed1 c\u1ee7a \u0111i\u1ec7n \u00e1p \u0111\u1eb7t v\u00e0o hai b\u1ea3n t\u1ee5 \u0111i\u1ec7n.<\/p>\n

B. gi\u1ea3m \u0111i\u1ec7n \u00e1p hi\u1ec7u d\u1ee5ng gi\u1eefa hai b\u1ea3n t\u1ee5 \u0111i\u1ec7n.<\/p>\n

C. \u0111\u01b0a b\u1ea3n \u0111i\u1ec7n m\u00f4i v\u00e0o trong l\u00f2ng t\u1ee5 \u0111i\u1ec7n.<\/p>\n

D. t\u0103ng kho\u1ea3ng c\u00e1ch gi\u1eefa hai b\u1ea3n t\u1ee5 \u0111i\u1ec7n.<\/p>\n

C\u00e2u 5:<\/b>\u00a0\u0110\u1eb7t \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u u=311cos100\u03c0t (V) v\u00e0o 2 \u0111\u1ea7u c\u1ee7a m\u1ed9t cu\u1ed9n c\u1ea3m thu\u1ea7n c\u00f3 \u0111\u1ed9 t\u1ef1 c\u1ea3m L=1\/\u03c0 (H). C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n hi\u1ec7u d\u1ee5ng qua cu\u1ed9n c\u1ea3m c\u00f3 gi\u00e1 tr\u1ecb b\u1eb1ng<\/p>\n

A. 3,1 A \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. 2,2 A \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C. 0,31 A \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. 0,22 A<\/p>\n

C\u00e2u 6:<\/b>\u00a0C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua t\u1ee5 \u0111i\u1ec7n c\u00f3 bi\u1ec3u th\u1ee9c i=2,5\u221a2 cos100\u03c0t (A). Bi\u1ebft t\u1ee5 \u0111i\u1ec7n c\u00f3 \u0111i\u1ec7n dung C=250\/\u03c0 (\u03bcF). \u0110i\u1ec7n \u00e1p gi\u1eefa hai b\u1ea3n t\u1ee5 \u0111i\u1ec7n c\u00f3 bi\u1ec3u th\u1ee9c l\u00e0<\/p>\n

\"\"<\/p>\n

C\u00e2u 7:<\/b><\/p>\n

\"\"<\/p>\n

C\u00e2u 8:<\/b>\u00a0M\u1ed9t t\u1ee5 \u0111i\u1ec7n c\u00f3 \u0111i\u1ec7n dung<\/p>\n

\"\"<\/p>\n

\u0111\u01b0\u1ee3c m\u1eafc v\u00e0o m\u1ed9t \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u c\u00f3 bi\u1ec3u th\u1ee9c l\u00e0 u=200\u221a2 cos100\u03c0t (V). \u0110i\u1ec7n tr\u1edf d\u00e2y n\u1ed1i kh\u00f4ng \u0111\u00e1ng k\u1ec3. Bi\u1ec3u th\u1ee9c c\u1ee7a d\u00f2ng \u0111i\u1ec7n t\u1ee9c th\u1eddi qua m\u1ea1ch l\u00e0<\/p>\n

\"\"<\/p>\n

C\u00e2u 9:<\/b>\u00a0Cho d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u i=2 cos\u2061100\u03c0t (A) qua \u0111i\u1ec7n tr\u1edf R = 50 \u03a9 trong th\u1eddi gian 1 ph\u00fat. Nhi\u1ec7t l\u01b0\u1ee3ng t\u1ecfa ra tr\u00ean \u0111i\u1ec7n tr\u1edf l\u00e0<\/p>\n

A. 600 J \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. 1000 J \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 C. 800 J \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. 1200 J<\/p>\n

C\u00e2u 10:<\/b>\u00a0M\u1eafc m\u1ed9t cu\u1ed9n c\u1ea3m v\u00e0o m\u1ed9t \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u c\u00f3 t\u1ea7n s\u1ed1 f, cu\u1ed9n c\u1ea3m c\u00f3 c\u1ea3m kh\u00e1ng l\u00e0 ZL<\/sub>. N\u1ebfu gi\u1ea3m \u0111\u1ed9 t\u1ef1 c\u1ea3m c\u1ee7a cu\u1ed9n c\u1ea3m \u0111i m\u1ed9t n\u1eeda v\u00e0 t\u1ea7n s\u1ed1 l\u00ean 4 l\u1ea7n th\u00ec c\u1ea3m kh\u00e1ng Z_L s\u1ebd<\/p>\n

A. t\u0103ng 8 l\u1ea7n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 B. gi\u1ea3m 8 l\u1ea7n<\/p>\n

C. t\u0103ng 2 l\u1ea7n \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 D. gi\u1ea3m 2 l\u1ea7n<\/p>\n

H\u01b0\u1edbng d\u1eabn gi\u1ea3i v\u00e0 \u0111\u00e1p \u00e1n<\/b><\/p>\n\n\n\n\n
C\u00e2u<\/td>\n1<\/td>\n2<\/td>\n3<\/td>\n4<\/td>\n5<\/td>\n6<\/td>\n7<\/td>\n8<\/td>\n9<\/td>\n10<\/td>\n<\/tr>\n
\u0110\u00e1p \u00e1n<\/td>\nB<\/td>\nB<\/td>\nA<\/td>\nD<\/td>\nB<\/td>\nC<\/td>\nA<\/td>\nD<\/td>\nA<\/td>\nC<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e2u 2:<\/b>\u00a0B<\/p>\n

\"\"<\/p>\n

C\u00e2u 5:<\/b>\u00a0B<\/p>\n

\"\"<\/p>\n

C\u00e2u 6:<\/b>\u00a0C<\/p>\n

\"\"<\/p>\n

C\u00e2u 7:<\/b>\u00a0A<\/p>\n

\"\"<\/p>\n

C\u00e2u 8:<\/b>\u00a0D<\/p>\n

\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e2u 1:\u00a0Tr\u00ean \u0111o\u1ea1n m\u1ea1ch xoay chi\u1ec1u t\u1ea7n s\u1ed1 50 Hz ch\u1ec9 c\u00f3 \u0111i\u1ec7n tr\u1edf thu\u1ea7n, A. pha c\u1ee7a c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n b\u1eb1ng 0. B. c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n trong m\u1ed7i gi\u00e2y c\u00f3 200 l\u1ea7n \u0111\u1ea1t gi\u00e1 tr\u1ecb b\u1eb1ng m\u1ed9t n\u1eeda gi\u00e1 tr\u1ecb c\u1ef1c \u0111\u1ea1i. C. c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n t\u1ee9c th\u1eddi kh\u00f4ng t\u1ec9 l\u1ec7 […]<\/p>\n","protected":false},"author":3,"featured_media":26221,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[158],"tags":[1445,1444],"yoast_head":"\nB\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 12: C\u00e1c m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/bai-tap-trac-nghiem-vat-li-12-cac-mach-dien-xoay-chieu\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m V\u1eadt L\u00ed 12: C\u00e1c m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u\" \/>\n<meta property=\"og:description\" content=\"C\u00e2u 1:\u00a0Tr\u00ean \u0111o\u1ea1n m\u1ea1ch xoay chi\u1ec1u t\u1ea7n s\u1ed1 50 Hz ch\u1ec9 c\u00f3 \u0111i\u1ec7n tr\u1edf thu\u1ea7n, A. pha c\u1ee7a c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n b\u1eb1ng 0. B. c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n trong m\u1ed7i gi\u00e2y c\u00f3 200 l\u1ea7n \u0111\u1ea1t gi\u00e1 tr\u1ecb b\u1eb1ng m\u1ed9t n\u1eeda gi\u00e1 tr\u1ecb c\u1ef1c \u0111\u1ea1i. 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B. c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n trong m\u1ed7i gi\u00e2y c\u00f3 200 l\u1ea7n \u0111\u1ea1t gi\u00e1 tr\u1ecb b\u1eb1ng m\u1ed9t n\u1eeda gi\u00e1 tr\u1ecb c\u1ef1c \u0111\u1ea1i. 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