{"id":1005,"date":"2021-10-08T13:00:40","date_gmt":"2021-10-08T13:00:40","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=1005"},"modified":"2021-10-14T22:12:11","modified_gmt":"2021-10-14T15:12:11","slug":"so-do-mach-dien-chieu-dong-dien-la-gi-kien-thuc-vat-ly-7","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/so-do-mach-dien-chieu-dong-dien-la-gi-kien-thuc-vat-ly-7\/","title":{"rendered":"S\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n chi\u1ec1u d\u00f2ng \u0111i\u1ec7n l\u00e0 g\u00ec? Ki\u1ebfn th\u1ee9c v\u1eadt l\u00fd 7"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd 7, h\u1ecdc v\u00e0 hi\u1ec3u v\u1ec1 m\u1ea1ch \u0111i\u1ec7n \u0111\u01a1n gi\u1ea3n l\u00e0 c\u1ef1c k\u1ef3 c\u1ea7n thi\u1ebft. \u0110\u00e2y s\u1ebd l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 c\u00e1c em c\u00f3 th\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c nh\u1eefng b\u00e0i cao c\u1ea5p h\u01a1n v\u1ec1 sau. \u1ede nh\u1eefng b\u1eadc h\u1ecdc cao h\u01a1n s\u1eed d\u1ee5ng r\u1ea5t nhi\u1ec1u s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n chi\u1ec1u d\u00f2ng \u0111i\u1ec7n. Do \u0111\u00f3, <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ecf qua nh\u00e9. Ch\u00fang t\u00f4i mang \u0111\u1ebfn cho b\u1ea1n nh\u1eefng th\u00f4ng tin v\u1ec1 s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n v\u1eadt l\u00fd 7 \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o. Tin r\u1eb1ng sau khi \u0111\u1ecdc xong b\u00e0i vi\u1ebft n\u00e0y, m\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 r\u00fat ra kinh nghi\u1ec7m cho b\u1ea3n th\u00e2n m\u00ecnh. C\u00f9ng b\u1eaft \u0111\u1ea7u th\u00f4i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nguy\u00ean l\u00fd s\u01a1 \u0111\u1ed3 d\u00f2ng \u0111i\u1ec7n chi\u1ec1u m\u1ea1ch \u0111i\u1ec7n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n chi\u1ec1u d\u00f2ng \u0111i\u1ec7n l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 nh\u1eefng ki\u1ebfn th\u1ee9c v\u1ec1 s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n chi\u1ec1u d\u00f2ng \u0111i\u1ec7n theo g\u00f3c nh\u00ecn v\u1eadt l\u00fd 7. C\u00e1c em <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> s\u1ebd \u0111\u01b0\u1ee3c h\u1ecdc nh\u1eefng ki\u1ebfn th\u1ee9c c\u1ed1t l\u00f5i, c\u01a1 b\u1ea3n. Do \u0111\u00f3 m\u00e0 c\u00e1c em s\u1ebd hi\u1ec3u v\u00e0 kh\u00f4ng th\u1ea5y n\u1eb7ng n\u1ec1 b\u1edfi ki\u1ebfn th\u1ee9c r\u1ed9ng l\u1edbn.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nhi\u1ec1u ng\u01b0\u1eddi kh\u00f4ng bi\u1ebft s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n c\u00f3 ngh\u0129a l\u00e0 g\u00ec. \u0110\u00e2y l\u00e0 h\u00ecnh v\u1ebd bi\u1ec3u di\u1ec5n m\u1ea1ch \u0111i\u1ec7n, s\u1eed d\u1ee5ng c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a m\u1ea1ch \u0111i\u1ec7n. Nh\u1eefng b\u1ed9 ph\u1eadn m\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u00fd hi\u1ec7u ch\u00ednh l\u00e0:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngu\u1ed3n \u0111i\u1ec7n (pin, \u1eafc quy)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Hai ngu\u1ed3n \u0111i\u1ec7n m\u1eafc n\u1ed1i ti\u1ebfp (b\u1ed9 pin, \u1eafc quy)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00f3ng \u0111\u00e8n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e2y d\u1eabn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00f4ng t\u1eafc (c\u00f3 th\u1ec3 \u0111\u00f3ng ng\u1eaft \u0111\u01b0\u1ee3c)<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111\u1ea1i l\u01b0\u1ee3ng trong m\u1ea1ch \u0111i\u1ec7n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chi\u1ec1u c\u1ee7a d\u00f2ng \u0111i\u1ec7n l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quy \u01b0\u1edbc v\u1ec1 chi\u1ec1u c\u1ee7a d\u00f2ng \u0111i\u1ec7n kh\u00f4ng qu\u00e1 ph\u1ee9c t\u1ea1p. Chi\u1ec1u d\u00f9ng \u0111i\u1ec7n (th\u1ee9 \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng m\u0169i t\u00ean) l\u00e0 chi\u1ec1u \u0111i 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.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n cung c\u1ea5p b\u1edfi pin hay \u1eafc quy, c\u00f3 chi\u1ec1u kh\u00f4ng \u0111\u1ed5i g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, chi\u1ec1u d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng c\u1ee7a c\u00e1c e t\u1ef1 do trong kim lo\u1ea1i kh\u00f4ng c\u00f9ng chi\u1ec1u. Ch\u00fang s\u1ebd ng\u01b0\u1ee3c chi\u1ec1u v\u1edbi chi\u1ec1u quy \u01b0\u1edbc c\u1ee7a d\u00f2ng \u0111i\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u00f4ng tin chi ti\u1ebft v\u1ec1 s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n chi\u1ec1u d\u00f2ng \u0111i\u1ec7n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n c\u00f2n c\u00f3 t\u00ean g\u1ecdi kh\u00e1c l\u00e0 s\u01a1 \u0111\u1ed3 c\u01a1 b\u1ea3n. Ngo\u00e0i ra, n\u00f3 c\u00f2n c\u00f3 t\u00ean l\u00e0 s\u01a1 \u0111\u1ed3 \u0111i\u1ec7n, s\u01a1 \u0111\u1ed3 \u0111i\u1ec7n t\u1eed, ho\u1eb7c l\u00e0 bi\u1ec3u di\u1ec5n \u0111\u1ed3 h\u1ecda c\u1ee7a m\u1ea1ch \u0111i\u1ec7n. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u01b0 c\u00e1c bi\u1ec3u t\u01b0\u1ee3ng \u0111\u1ed3 h\u1ecda, gi\u00fap ti\u00eau chu\u1ea9n h\u00f3a v\u00e0 g\u1ecdi l\u00e0 k\u00fd hi\u1ec7u \u0111i\u1ec7n t\u1eed. \u0110i\u1ec1u n\u00e0y gi\u00fap bi\u1ec3u di\u1ec5n c\u00e1c th\u00e0nh ph\u1ea7n v\u00e0 m\u1ed1i li\u00ean k\u1ebft c\u1ee7a c\u00e1c m\u1ea1ch \u0111\u01b0\u1ee3c t\u1ed1t h\u01a1n. Vi\u1ec7c tr\u00ecnh b\u00e0y c\u00e1c m\u1ed1i li\u00ean k\u1ebft trong s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n chi\u1ec1u d\u00f2ng \u0111i\u1ec7n kh\u00f4ng c\u1ea7n qu\u00e1 gi\u1ed1ng. Ch\u1ec9 c\u1ea7n khi ng\u01b0\u1eddi kh\u00e1c nh\u00ecn v\u00e0o v\u00e0 hi\u1ec3u \u0111\u01b0\u1ee3c v\u1ecb tr\u00ed c\u1ee7a s\u1ef1 s\u1eafp x\u1ebfp l\u00e0 \u0111\u00e3 ho\u00e0n th\u00e0nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1c v\u1edbi s\u01a1 \u0111\u1ed3 b\u1ed1 tr\u00ed ho\u1eb7c m\u1ed9t s\u01a1 \u0111\u1ed3 kh\u1ed1i, nh\u1eefng s\u01a1 \u0111\u1ed3 n\u00e0y cho ta th\u1ea5y k\u1ebft n\u1ed1i \u0111i\u1ec7n tr\u00ean th\u1ef1c t\u1ebf. M\u1ed9t b\u1ea3n v\u1ebd s\u1ebd \u0111\u01b0\u1ee3c coi l\u00e0 c\u00f3 \u00fd ngh\u0129a khi ta th\u1ea5y n\u00f3 m\u00f4 t\u1ea3 \u0111\u01b0\u1ee3c s\u1ef1 s\u1eafp x\u1ebfp v\u1eadt l\u00fd. Nh\u00ecn v\u00e0o s\u1ebd th\u1ea5y c\u00e1c d\u00e2y v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c k\u1ebft n\u1ed1i nhau r\u1ea5t ch\u1eb7t ch\u1ebd. \u0110\u00e2y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 t\u00e1c ph\u1ea9m ngh\u1ec7 thu\u1eadt b\u1ed1 tr\u00ed, s\u01a1 \u0111\u1ed3 h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n ho\u1eb7c l\u00e0 <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">thi\u1ebft k\u1ebf<\/a> v\u1eadt l\u00fd.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n, s\u1ebd r\u1ea5t c\u00f3 l\u1ee3i n\u1ebfu bi\u1ec3u di\u1ec5n b\u1eb1ng \u0111\u1ea1i s\u1ed1 Boole. Ngo\u00e0i ra, s\u01a1 \u0111\u1ed3 n\u00e0y c\u00f3 th\u1ec3 d\u00f9ng cho vi\u1ec7c <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">thi\u1ebft k\u1ebf<\/a> m\u1ea1ch. \u0110i\u1ec1u n\u00e0y gi\u00fap cho b\u1ed1 tr\u00ed m\u1ea1ch in, b\u1ea3o tr\u00ec thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed c\u0169ng \u0111\u01a1n gi\u1ea3n h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>T\u00ecm hi\u1ec3u th\u00eam v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n v\u00e0 ch\u1ea5t c\u00e1ch \u0111i\u1ec7n<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i t\u1eadp v\u1ec1 s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n chi\u1ec1u d\u00f2ng \u0111i\u1ec7n v\u00e0 h\u01b0\u1edbng d\u1eabn gi\u1ea3i<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu nh\u01b0 b\u1ea1n mu\u1ed1n t\u00ecm hi\u1ec3u th\u00eam th\u00f4ng tin v\u1ec1 s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n chi\u1ec1u d\u00f2ng \u0111i\u1ec7n. Vi\u1ec7c l\u00e0m b\u00e0i t\u1eadp s\u1ebd l\u00e0 c\u00e1ch \u0111\u1ec3 c\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c t\u1ed1t nh\u1ea5t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Chia s\u1ebb ph\u01b0\u01a1ng ph\u00e1p l\u00e0m b\u00e0i t\u1eadp<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ea7u ti\u00ean, c\u00e1c em <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> c\u1ea7n ph\u1ea3i n\u1eafm v\u1eefng l\u00fd thuy\u1ebft. V\u1edbi b\u1ea5t k\u1ef3 d\u1ea1ng b\u00e0i n\u00e0o c\u0169ng v\u1eady, kh\u00f4ng ri\u00eang g\u00ec \u0111\u1ed1i v\u1edbi b\u00e0i t\u1eadp m\u1ea1ch \u0111i\u1ec7n. \u0110i\u1ec1u n\u00e0y s\u1ebd gi\u00fap cho c\u00e1c em t\u1ef1 tin khi l\u00e0m b\u00e0i t\u1eadp h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong khi l\u00e0m b\u00e0i, \u0111\u1ed1i v\u1edbi d\u1ea1ng b\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m, c\u00e1c em n\u00ean \u0111\u1ecdc t\u1ea5t c\u1ea3 th\u00f4ng tin m\u00e0 \u0111\u1ec1 b\u00e0i \u0111\u01b0a \u0111\u1ebfn. \u0110\u1eebng v\u1ed9i khoanh ngay v\u00e0o c\u00e2u m\u00e0 m\u00ecnh c\u1ea3m th\u1ea5y l\u00e0 \u0111\u00fang. L\u00fd do l\u00e0 b\u1edfi trong \u0111\u1ec1 b\u00e0i s\u1ebd g\u00e0i r\u1ea5t nhi\u1ec1u th\u00f4ng tin b\u1eaby. Ch\u00ednh nh\u1eefng chi\u1ebfc b\u1eaby n\u00e0y c\u00f3 th\u1ec3 khi\u1ebfn cho c\u00e1c em khoanh sai, b\u1edfi th\u00f4ng tin l\u1eeba r\u1ea5t l\u00e9o l\u1eaft. Th\u1ebf n\u00ean, h\u00e3y \u0111\u1ea3m b\u1ea3o lo\u1ea1i tr\u1eeb \u0111\u01b0\u1ee3c h\u1ebft nh\u1eefng ph\u01b0\u01a1ng \u00e1n sai v\u00e0 ch\u1ecdn \u0111\u01b0\u1ee3c ph\u01b0\u01a1ng ph\u00e1p \u0111\u00fang nh\u1ea5t nh\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c s\u01a1 \u0111\u1ed3 d\u00f2ng \u0111i\u1ec7n chi\u1ec1u m\u1ea1ch \u0111i\u1ec7n hay g\u1eb7p<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i ra, sau khi l\u00e0m b\u00e0i xong, h\u00e3y \u0111\u1ecdc so\u00e1t l\u1ea1i m\u1ed9t l\u1ea7n. M\u1ed7i m\u1ed9t c\u00e2u tr\u1eafc nghi\u1ec7m tuy r\u1eb1ng kh\u00f4ng chi\u1ebfm bao nhi\u00eau tr\u00ean t\u1ed5ng s\u1ed1 \u0111i\u1ec3m, th\u1ebf nh\u01b0ng n\u1ebfu sai nhi\u1ec1u c\u00e2u th\u00ec s\u1ebd r\u1ea5t \u0111\u00e1ng ti\u1ebfc. Do \u0111\u00f3, c\u00e1c em <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">h\u1ecdc sinh<\/a> ph\u1ea3i tranh th\u1ee7 th\u1eddi gian \u0111\u1ec3 ki\u1ec3m tra k\u1ef9 l\u1ea1i \u0111\u00e1p \u00e1n, gi\u00fap m\u00ecnh t\u1ef1 tin r\u1eb1ng m\u00ecnh kh\u00f4ng b\u1ecb sai s\u00f3t \u1edf ngu\u1ed3n ki\u1ebfn th\u1ee9c n\u00e0o nh\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1eebng qu\u00ean tham kh\u1ea3o l\u1ea1i ph\u1ea7n gi\u1ea3i b\u00e0i t\u1eadp. Vi\u1ec7c bi\u1ebft m\u00ecnh sai \u1edf \u0111\u00e2u v\u00e0 tham kh\u1ea3o l\u00e0 c\u1ef1c k\u1ef3 c\u1ea7n thi\u1ebft. N\u00f3 s\u1ebd gi\u00fap b\u1ea1n r\u00fat \u0111\u01b0\u1ee3c kinh nghi\u1ec7m v\u00e0 tr\u00e1nh \u0111\u01b0\u1ee3c nhi\u1ec1u sai l\u1ea7m nh\u1ea5t c\u00f3 th\u1ec3.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>T\u00ecm hi\u1ec3u v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i t\u1eadp v\u1eadt l\u00fd 7<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu b\u1ea1n mu\u1ed1n \u0111\u1ecdc nh\u1eefng l\u1eddi gi\u1ea3i b\u00e0i t\u1eadp v\u1eadt l\u00fd 7 b\u00e0i 21, h\u00e3y \u0111\u1ecdc \u1edf ph\u1ea7n sau nh\u00e9. Ch\u00fang t\u00f4i s\u1ebd mang \u0111\u1ebfn m\u1ed9t s\u1ed1 b\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m hay g\u1eb7p. \u0110\u00e1p \u00e1n s\u1ebd \u0111\u1ec3 ra m\u1ed9t ph\u1ea7n ri\u00eang, tr\u00e1nh s\u1ef1 xao nh\u00e3ng cho ng\u01b0\u1eddi h\u1ecdc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i t\u1eadp<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e2u 1: C\u00e1ch quy \u01b0\u1edbc c\u1ee7a chi\u1ec1u d\u00f2ng \u0111i\u1ec7n ch\u1ea1y trong m\u1ea1ch k\u00edn nh\u01b0 th\u1ebf n\u00e0o?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A Chi\u1ec1u t\u1eeb c\u1ef1c d\u01b0\u01a1ng \u0111i 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<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B Chi\u1ec1u d\u1ecbch chuy\u1ec3n c\u00f3 h\u01b0\u1edbng c\u1ee7a c\u00e1c \u0111i\u1ec7n t\u00edch \u00e2m c\u00f3 trong m\u1ea1ch<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C Ng\u01b0\u1ee3c chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3 khi ta nh\u00ecn v\u00e0o s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n k\u00edn<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D C\u00f9ng chi\u1ec1u kim \u0111\u1ed3ng h\u1ed3 khi nh\u00ecn v\u00e0o m\u1ea1ch c\u1ee7a s\u01a1 \u0111\u1ed3<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e2u 2: S\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A L\u00e0 h\u00ecnh v\u1ebd m\u1ea1ch \u0111i\u1ec7n th\u1eadt, th\u1ebf nh\u01b0ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n v\u1edbi k\u00edch th\u01b0\u1edbc thu nh\u1ecf<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">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<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C L\u00e0 h\u00ecnh v\u1ebd bi\u1ec3u di\u1ec5n m\u1ea1ch \u0111i\u1ec7n b\u1eb1ng c\u00e1c k\u00fd hi\u1ec7u c\u1ee7a ch\u00ednh c\u00e1c b\u1ed9 ph\u1eadn m\u1ea1ch \u0111i\u1ec7n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D L\u00e0 \u1ea3nh ch\u1ee5p m\u1ea1ch \u0111i\u1ec7n th\u1eadt<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e2u 3: \u0110\u1ecbnh ngh\u0129a v\u1ec1 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A D\u00f2ng \u0111i\u1ec7n c\u00f3 c\u00e1c e t\u1ef1 do c\u00f9ng chi\u1ec1u quy \u01b0\u1edbc v\u1edbi d\u00f2ng \u0111i\u1ec7n g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B 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<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C D\u00f2ng \u0111i\u1ec7n c\u00f3 c\u00e1c electron t\u1ef1 do ng\u01b0\u1ee3c v\u1edbi chi\u1ec1u quy \u01b0\u1edbc c\u1ee7a d\u00f2ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">D D\u00f2ng \u0111i\u1ec7n cung c\u1ea5p b\u1edfi pin ho\u1eb7c \u1eafc quy c\u00f3 chi\u1ec1u kh\u00f4ng \u0111\u1ed5i, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3i b\u00e0i t\u1eadp<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi nh\u1eefng b\u00e0i t\u1eadp v\u1ec1 s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n chi\u1ec1u d\u00f2ng \u0111i\u1ec7n, b\u1ea1n ch\u1ec9 c\u1ea7n n\u1eafm ch\u1eafc l\u00fd thuy\u1ebft. Nh\u1eefng c\u00e2u h\u1ecfi m\u00e0 \u0111\u1ec1 b\u00e0i \u0111\u01b0a \u0111\u1ebfn kh\u00f4ng qu\u00e1 kh\u00f3. Th\u1ebf n\u00ean ch\u00fang t\u00f4i tin ch\u1eafc r\u1eb1ng b\u1ea1n s\u1ebd kh\u00f4ng l\u00e0m sai \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p \u00e1n 1: A<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p \u00e1n 2: C<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1p \u00e1n 3: C<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ngo\u00e0i nh\u1eefng b\u00e0i t\u1eadp n\u00e0y ra, c\u00e1c em c\u00f3 th\u1ec3 t\u00ecm th\u00eam b\u00e0i t\u1eadp kh\u00e1c \u0111\u1ec3 c\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c. Kh\u00f4ng ch\u1ec9 l\u00e0 d\u1ea1ng b\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m, hi\u1ec3u v\u00e0 l\u00e0m \u0111\u01b0\u1ee3c b\u00e0i t\u1eadp t\u1ef1 lu\u1eadn s\u1ebd gi\u00fap c\u00e1c em nh\u1edb ki\u1ebfn th\u1ee9c s\u00e2u h\u01a1n. Nh\u1eefng ki\u1ebfn th\u1ee9c n\u00e0y s\u1ebd b\u1ed5 tr\u1ee3 n\u1ec1n t\u1ea3ng cho nh\u1eefng b\u00e0i h\u1ecdc v\u1eadt l\u00fd kh\u00e1c. Do \u0111\u00f3, c\u00e1c em tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c qu\u00ean nh\u1eefng b\u00e0i h\u1ecdc n\u00e0y. C\u1ed1 g\u1eafng b\u1ed5 sung th\u1eadt t\u1ed1t m\u1ed7i ng\u00e0y \u0111\u1ec3 kh\u00f4ng ph\u1ea3i lo l\u1eafng trong k\u1ef3 thi quan tr\u1ecdng nh\u00e9.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c d\u1ea1ng s\u01a1 \u0111\u1ed3 d\u00f2ng \u0111i\u1ec7n chi\u1ec1u m\u1ea1ch \u0111i\u1ec7n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u00ean \u0111\u00e2y l\u00e0 nh\u1eefng th\u00f4ng tin ch\u00fang t\u00f4i \u0111\u01b0a \u0111\u1ebfn cho c\u00e1c em v\u1ec1 s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec7n chi\u1ec1u d\u00f2ng \u0111i\u1ec7n. Tuy r\u1eb1ng \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ki\u1ebfn th\u1ee9c kh\u00f3, th\u1ebf nh\u01b0ng l\u00fd thuy\u1ebft s\u1ebd d\u1ec5 khi\u1ebfn c\u00e1c em lung lay n\u1ebfu l\u00e0m b\u00e0i tr\u1eafc nghi\u1ec7m. H\u00e3y lu\u00f4n l\u00e0 m\u1ed9t ng\u01b0\u1eddi th\u00f4ng minh v\u00e0 c\u1ed1 g\u1eafng kh\u00f4ng \u0111\u1ec3 m\u00ecnh b\u1ecb \u0111\u00e1nh l\u1eeba b\u1edfi nh\u1eefng ki\u1ebfn th\u1ee9c t\u01b0\u1edfng nh\u01b0 \u0111\u01a1n gi\u1ea3n n\u00e0y nh\u00e9. Ngo\u00e0i ra, tr\u00ean website c\u1ee7a ch\u00fang t\u00f4i c\u00f2n c\u00f3 r\u1ea5t nhi\u1ec1u b\u00e0i vi\u1ebft v\u1ec1 v\u1eadt l\u00fd kh\u00e1c. V\u00ed d\u1ee5 b\u00e0i vi\u1ebft v\u1ec1 ch\u1ea5t d\u1eabn \u0111i\u1ec7n, ch\u1ea5t c\u00e1ch \u0111i\u1ec7n . Th\u1ebf n\u00ean, n\u1ebfu nh\u01b0 mu\u1ed1n h\u1ecdc h\u1ecfi th\u00eam nhi\u1ec1u ki\u1ebfn th\u1ee9c m\u1edbi l\u1ea1, c\u00e1c em kh\u00f4ng n\u00ean b\u1ecf qua \u0111\u00e2u. Ch\u00fac c\u00e1c em lu\u00f4n chinh ph\u1ee5c \u0111\u01b0\u1ee3c c\u00e1c d\u1ea1ng b\u00e0i t\u1eadp v\u1eadt l\u00fd v\u00e0 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec3m t\u1ed1i \u0111a!<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>Kh\u00e1m ph\u00e1 th\u00eam nh\u1eefng ch\u1ee7 \u0111\u1ec1 kh\u00e1c<\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u l\u00e0 g\u00ec b\u1ea1n c\u00f3 bi\u1ebft? Ki\u1ebfn th\u1ee9c v\u1eadt l\u00fd 9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec7n th\u1ebf hi\u1ec7u \u0111i\u1ec7n th\u1ebf \u2013 Kh\u00e1i ni\u1ec7m v\u00e0 c\u00f4ng th\u1ee9c chi ti\u1ebft<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn \u0110\u1ed1i v\u1edbi ch\u01b0\u01a1ng tr\u00ecnh v\u1eadt l\u00fd 7, h\u1ecdc v\u00e0 hi\u1ec3u v\u1ec1 m\u1ea1ch \u0111i\u1ec7n \u0111\u01a1n gi\u1ea3n l\u00e0 c\u1ef1c k\u1ef3 c\u1ea7n thi\u1ebft. \u0110\u00e2y s\u1ebd l\u00e0 n\u1ec1n t\u1ea3ng \u0111\u1ec3 c\u00e1c em c\u00f3 th\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c nh\u1eefng b\u00e0i cao c\u1ea5p h\u01a1n v\u1ec1 sau. \u1ede nh\u1eefng b\u1eadc h\u1ecdc cao h\u01a1n s\u1eed d\u1ee5ng r\u1ea5t nhi\u1ec1u [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[4,7],"tags":[],"class_list":["post-1005","post","type-post","status-publish","format-standard","hentry","category-trung-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1005","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=1005"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1005\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1005"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1005"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1005"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}