{"id":1712,"date":"2025-07-03T05:52:58","date_gmt":"2025-07-03T05:52:58","guid":{"rendered":"https:\/\/nbaem.com\/?p=1712"},"modified":"2025-07-03T05:52:58","modified_gmt":"2025-07-03T05:52:58","slug":"how-to-create-electricity-using-magnets","status":"publish","type":"post","link":"https:\/\/nbaem.com\/vi\/how-to-create-electricity-using-magnets\/","title":{"rendered":"C\u00e1ch t\u1ea1o ra \u0111i\u1ec7n b\u1eb1ng nam ch\u00e2m"},"content":{"rendered":"

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n b\u1eb1ng nam ch\u00e2m?<\/h1>\n

H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng vi\u1ec7c cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho m\u1ed9t thi\u1ebft b\u1ecb m\u00e0 kh\u00f4ng c\u1ea7n pin ho\u1eb7c nhi\u00ean li\u1ec7u\u2014ch\u1ec9 c\u1ea7n nam ch\u00e2m v\u00e0 chuy\u1ec3n \u0111\u1ed9ng. \u00dd t\u01b0\u1edfng \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 khoa h\u1ecdc vi\u1ec5n t\u01b0\u1edfng. \u0110\u00f3 l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb.<\/p>\n

\u0110\u00fang v\u1eady, nam ch\u00e2m c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n. Khi m\u1ed9t tr\u01b0\u1eddng t\u1eeb di chuy\u1ec3n qua m\u1ed9t d\u00e2y d\u1eabn, n\u00f3 g\u00e2y ra d\u00f2ng \u0111i\u1ec7n. Nguy\u00ean l\u00fd n\u00e0y cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho h\u1ea7u h\u1ebft c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n ng\u00e0y nay.<\/strong><\/p>\n

\"C\u1ea3m

C\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb\uff08\u1ea3nh t\u1eeb KhoaHocThongTin.net<\/a>)<\/p><\/div>\n

Hi\u1ec3u \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 gi\u00fap ch\u00fang ta kh\u00e1m ph\u00e1 c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a \u0111\u1ed9ng c\u01a1, m\u00e1y ph\u00e1t \u0111i\u1ec7n v\u00e0 nhi\u1ec1u thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed kh\u00e1c.<\/p>\n

C\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n t\u1eeb nam ch\u00e2m kh\u00f4ng?<\/h2>\n

\u00dd t\u01b0\u1edfng n\u00e0y c\u00f3 v\u1ebb l\u1ea1 ban \u0111\u1ea7u, nh\u01b0ng kh\u00e1i ni\u1ec7m n\u00e0y \u0111\u00e3 t\u1ed3n t\u1ea1i h\u01a1n 200 n\u0103m. Khi c\u00e1c nh\u00e0 khoa h\u1ecdc th\u1ea5y \u0111i\u1ec7n v\u00e0 t\u1eeb t\u01b0\u01a1ng t\u00e1c, n\u00f3 \u0111\u00e3 thay \u0111\u1ed5i ng\u00e0nh v\u1eadt l\u00fd m\u00e3i m\u00e3i.<\/p>\n

\u0110\u00fang v\u1eady, \u0111i\u1ec1u n\u00e0y ho\u00e0n to\u00e0n kh\u1ea3 thi. M\u1ed9t tr\u01b0\u1eddng t\u1eeb bi\u1ebfn \u0111\u1ed5i b\u00ean trong m\u1ed9t cu\u1ed9n d\u00e2y d\u1eabn t\u1ea1o ra \u0111i\u1ec7n. \u0110i\u1ec1u n\u00e0y g\u1ecdi l\u00e0 c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb.<\/strong><\/p>\n

 <\/p>\n

N\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n

1. Kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i: C\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb<\/h4>\n

N\u0103m 1831, Michael Faraday ph\u00e1t hi\u1ec7n ra r\u1eb1ng m\u1ed9t nam ch\u00e2m di chuy\u1ec3n g\u1ea7n m\u1ed9t v\u00f2ng d\u00e2y d\u1eabn t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7t n\u1ec1n m\u00f3ng cho c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n v\u00e0 bi\u1ebfn \u00e1p.<\/p>\n\n\n\n\n\n\n\n
Y\u1ebfu t\u1ed1<\/th>\nVai tr\u00f2 trong c\u1ea3m \u1ee9ng<\/th>\n<\/tr>\n<\/thead>\n
Nam ch\u00e2m<\/span><\/strong><\/a><\/td>\nCung c\u1ea5p tr\u01b0\u1eddng t\u1eeb di chuy\u1ec3n<\/td>\n<\/tr>\n
Cu\u1ed9n d\u00e2y (D\u00e2y d\u1eabn)<\/td>\nN\u01a1i t\u1ea1o ra \u0111i\u1ec7n \u00e1p<\/td>\n<\/tr>\n
Chuy\u1ec3n \u0111\u1ed9ng<\/td>\nThay \u0111\u1ed5i flux t\u1eeb, cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

2. V\u00ed d\u1ee5 th\u1ef1c t\u1ebf: M\u00e1y ph\u00e1t \u0111i\u1ec7n xe \u0111\u1ea1p<\/h4>\n

Khi b\u1ea1n \u0111\u1ea1p xe \u0111\u1ea1p, m\u1ed9t nam ch\u00e2m nh\u1ecf b\u00ean trong m\u00e1y ph\u00e1t \u0111i\u1ec7n quay qua c\u00e1c cu\u1ed9n \u0111\u1ed3ng. Chuy\u1ec3n \u0111\u1ed9ng n\u00e0y t\u1ea1o ra \u0111i\u1ec7n \u00e1p, l\u00e0m s\u00e1ng \u0111\u00e8n xe \u0111\u1ea1p. N\u00f3 kh\u00f4ng c\u1ea7n pin\u2014ch\u1ec9 c\u1ea7n chuy\u1ec3n \u0111\u1ed9ng.<\/p>\n

3. \u0110\u1ecbnh lu\u1eadt Faraday<\/h4>\n

C\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a \u0111i\u1ec7n \u00e1p ph\u1ee5 thu\u1ed9c v\u00e0o:<\/p>\n

    \n
  • T\u1ed1c \u0111\u1ed9 chuy\u1ec3n \u0111\u1ed9ng c\u1ee7a t\u1eeb tr\u01b0\u1eddng<\/li>\n
  • S\u1ed1 v\u00f2ng d\u00e2y qu\u1ea5n<\/li>\n
  • C\u01b0\u1eddng \u0111\u1ed9 c\u1ee7a nam ch\u00e2m<\/li>\n
  • H\u01b0\u1edbng c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng<\/li>\n<\/ul>\n

    Nh\u1eefng y\u1ebfu t\u1ed1 n\u00e0y cho ph\u00e9p c\u00e1c k\u1ef9 s\u01b0 thi\u1ebft k\u1ebf c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n kh\u00e1c nhau cho c\u00e1c m\u1ee5c \u0111\u00edch kh\u00e1c nhau, t\u1eeb turbine gi\u00f3 \u0111\u1ebfn \u0111\u00e8n pin c\u1ea7m tay.<\/p>\n

    K\u1ebft lu\u1eadn<\/h2>\n

    Nam ch\u00e2m c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n khi ch\u00fang chuy\u1ec3n \u0111\u1ed9ng t\u01b0\u01a1ng \u0111\u1ed1i v\u1edbi m\u1ed9t ch\u1ea5t d\u1eabn \u0111i\u1ec7n. Nguy\u00ean l\u00fd n\u00e0y \u0111\u01a1n gi\u1ea3n nh\u01b0ng v\u00f4 c\u00f9ng m\u1ea1nh m\u1ebd.<\/p>","protected":false},"excerpt":{"rendered":"

    L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u1ea1o ra \u0111i\u1ec7n b\u1eb1ng nam ch\u00e2m? T\u01b0\u1edfng t\u01b0\u1ee3ng b\u1ea1n cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho m\u1ed9t thi\u1ebft b\u1ecb m\u00e0 kh\u00f4ng c\u1ea7n pin ho\u1eb7c nhi\u00ean li\u1ec7u\u2014ch\u1ec9 c\u1ea7n nam ch\u00e2m v\u00e0 chuy\u1ec3n \u0111\u1ed9ng. \u00dd t\u01b0\u1edfng \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 khoa h\u1ecdc vi\u1ec5n t\u01b0\u1edfng. \u0110\u00f3 l\u00e0 n\u1ec1n t\u1ea3ng c\u1ee7a c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb. \u0110\u00fang v\u1eady, nam ch\u00e2m c\u00f3 th\u1ec3 t\u1ea1o ra \u0111i\u1ec7n. Khi m\u1ed9t tr\u01b0\u1eddng t\u1eeb chuy\u1ec3n qua m\u1ed9t ch\u1ea5t d\u1eabn \u0111i\u1ec7n, n\u00f3 g\u00e2y ra d\u00f2ng \u0111i\u1ec7n. Nguy\u00ean l\u00fd n\u00e0y cung c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho h\u1ea7u h\u1ebft c\u00e1c m\u00e1y ph\u00e1t \u0111i\u1ec7n ng\u00e0y nay.<\/p>","protected":false},"author":1,"featured_media":1717,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1712","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"jetpack_featured_media_url":"https:\/\/nbaem.com\/wp-content\/uploads\/2025\/07\/Xnip2025-07-03_13-49-05.jpg","_links":{"self":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1712","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/comments?post=1712"}],"version-history":[{"count":4,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1712\/revisions"}],"predecessor-version":[{"id":1718,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/posts\/1712\/revisions\/1718"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media\/1717"}],"wp:attachment":[{"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/media?parent=1712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/categories?post=1712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nbaem.com\/vi\/wp-json\/wp\/v2\/tags?post=1712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}