B\u00e0i vi\u1ebft h\u00f4m nay tamcaotrithuc.com s\u1ebd tr\u00ecnh b\u00e0y chi ti\u1ebft v\u1ec1 c\u00e1c c\u00f4ng th\u1ee9c t\u00ednh c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n v\u00e0 nh\u1eefng b\u00e0i t\u1eadp v\u00ed d\u1ee5 c\u01a1 b\u1ea3n \u0111\u1ec3 c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o.<\/p>\n

I\/ C\u00f4ng th\u1ee9c t\u00ednh c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n<\/h2>\n

1\/ \u0110\u1ecbnh ngh\u0129a c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n<\/h3>\n

C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n ch\u00ednh l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u1eb7c tr\u01b0ng cho s\u1ef1 t\u00e1c d\u1ee5ng m\u1ea1nh hay y\u1ebfu c\u1ee7a d\u00f2ng \u0111i\u1ec7n. C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n c\u00f2n \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng th\u01b0\u01a1ng s\u1ed1 gi\u1eefa \u0111i\u1ec7n l\u01b0\u1ee3ng \u2206q \u0111\u01b0\u1ee3c d\u1ecbch chuy\u1ec3n qua ti\u1ebft di\u1ec7n th\u1eb3ng c\u1ee7a 1 v\u1eadt d\u1eabn trong 1 kho\u1ea3ng th\u1eddi gian \u2206t v\u00e0 kho\u1ea3ng th\u1eddi gian \u0111\u00f3..<\/p>\n

<\/p>\n

2\/ C\u00f4ng th\u1ee9c t\u00ednh c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n c\u1ee7a d\u00f2ng \u0111i\u1ec7n kh\u00f4ng \u0111\u1ed5i<\/h3>\n

I = q \/ t (A)<\/p>\n

q: l\u00e0 \u0111i\u1ec7n l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c chuy\u1ec3n qua ti\u1ebft di\u1ec7n th\u1eb3ng c\u1ee7a 1 v\u1eadt d\u1eabn trong kho\u1ea3ng th\u1eddi gian t<\/p>\n

3\/ C\u00f4ng th\u1ee9c t\u00ednh c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n theo \u0111\u1ecbnh lu\u1eadt \u00f4m<\/h3>\n

I = U \/ R<\/p>\n

\u00a0Trong \u0111\u00f3:<\/p>\n

\n
• I: C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n (\u0111\u01a1n v\u1ecb A)<\/li>\n
• U: Hi\u1ec7u \u0111i\u1ec7n th\u1ebf (\u0111\u01a1n v\u1ecb V)<\/li>\n
• R: \u0110i\u1ec7n tr\u1edf (\u0111\u01a1n v\u1ecb \u03a9)<\/li>\n<\/ul>\n

  <\/p>\n

  4\/ C\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n trong \u0111o\u1ea1n m\u1ea1ch theo \u0111\u1ecbnh lu\u1eadt \u00f4m<\/h3>\n

  <\/p>\n

  N\u1ed1i ti\u1ebfp: I = I_{1<\/sub> = I2<\/sub> = \u2026 = In<\/sub><\/p>\n}

  Song song: I = I_{1<\/sub> + I2<\/sub> + \u2026 + In<\/sub><\/p>\n}

  II\/ B\u00e0i t\u1eadp<\/h2>\n

  B\u00e0i 1:<\/strong> Trong kho\u1ea3ng th\u1eddi gian l\u00e0 2s c\u00f3 1 \u0111i\u1ec7n l\u01b0\u1ee3ng l\u00e0 1,50C d\u1ecbch chuy\u1ec3n qua 1 ti\u1ebft di\u1ec7n th\u1eb3ng c\u1ee7a d\u00e2y t\u00f3c 1 b\u00f3ng \u0111\u00e8n. H\u00e3y t\u00ednh c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua b\u00f3ng \u0111\u00e8n.<\/p>\n

  B\u00e0i 2:<\/strong> C\u00f3 1 b\u1ed9 pin c\u1ee7a 1 thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u00f3 th\u1ec3 cung c\u1ea5p 1 d\u00f2ng \u0111i\u1ec7n l\u00e0 2A li\u00ean t\u1ee5c trong v\u00f2ng 1 gi\u1edd th\u00ec ta ph\u1ea3i n\u1ea1p l\u1ea1i.<\/p>\n

  a) N\u1ebfu b\u1ed9 pin \u1edf tr\u00ean s\u1eed d\u1ee5ng li\u00ean t\u1ee5c trong v\u00f2ng 4 gi\u1edd nh\u01b0ng \u1edf ch\u1ebf \u0111\u1ed9 ti\u1ebft ki\u1ec7m n\u0103ng l\u01b0\u1ee3ng th\u00ec m\u1edbi ph\u1ea3i n\u1ea1p l\u1ea1i. H\u00e3y t\u00ednh c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n b\u1ed9 pin n\u00e0y c\u00f3 th\u1ec3 cung c\u1ea5p?<\/p>\n

  b) H\u00e3y t\u00ednh su\u1ea5t \u0111i\u1ec7n \u0111\u1ed9ng c\u1ee7a b\u1ed9 pin n\u1ebfu trong kho\u1ea3ng th\u1eddi gian l\u00e0 1 gi\u1edd n\u00f3 sinh ra 1 c\u00f4ng l\u00e0 72 KJ.<\/p>\n

  B\u00e0i 3:<\/strong> Cho bi\u1ebft s\u1ed1 electron d\u1ecbch chuy\u1ec3n qua 1 ti\u1ebft di\u1ec7n th\u1eb3ng c\u1ee7a d\u00e2y d\u1eabn trong th\u1eddi gian 2s l\u00e0 6,25.10^{18<\/sup> e. T\u00ednh c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua d\u00e2y d\u1eabn l\u00e0 bao nhi\u00eau?<\/p>\n}

  B\u00e0i 4:<\/strong> 1 \u0111o\u1ea1n m\u1ea1ch g\u1ed3m c\u00f3 \u0111i\u1ec7n tr\u1edf R_{1<\/sub> = 300\u03a9 \u0111\u01b0\u1ee3c m\u1eafc song song v\u1edbi \u0111i\u1ec7n tr\u1edf R2\u00a0<\/sub>= 600\u03a9 trong m\u1ea1ch c\u00f3 hi\u1ec7u \u0111i\u1ec7n th\u1ebf gi\u1eefa 2 \u0111\u1ea7u \u0111o\u1ea1n m\u1ea1ch l\u00e0 24V. T\u00ednh c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua m\u1ed7i \u0111i\u1ec7n tr\u1edf ?<\/p>\n}

  B\u00e0i 5:<\/strong> Cho 2 \u0111i\u1ec7n tr\u1edf R_{1<\/sub> = 6\u03a9 v\u00e0 R2<\/sub> = 4\u03a9 \u0111\u01b0\u1ee3c m\u1eafc n\u1ed1i ti\u1ebfp v\u1edbi nhau v\u00e0 \u0111\u01b0\u1ee3c m\u1eafc v\u00e0o hi\u1ec7u \u0111i\u1ec7n th\u1ebf l\u00e0 20V.<\/p>\n}

  \n
  1. T\u00ednh c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua c\u00e1c \u0111i\u1ec7n tr\u1edf, hi\u1ec7u \u0111i\u1ec7n th\u1ebf 2 \u0111\u1ea7u c\u1ee7a m\u1ed7i \u0111i\u1ec7n tr\u1edf?<\/li>\n
  2. T\u00ednh c\u00f4ng su\u1ea5t t\u1ecfa nhi\u1ec7t c\u1ee7a m\u1ed7i \u0111i\u1ec7n tr\u1edf v\u00e0 c\u1ee7a \u0111o\u1ea1n m\u1ea1ch? H\u00e3y t\u00ednh nhi\u1ec7t l\u01b0\u1ee3ng t\u1ecfa ra tr\u00ean \u0111i\u1ec7n tr\u1edf R2 trong 10 ph\u00fat?<\/li>\n<\/ol>\n

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

     B\u00e0i vi\u1ebft h\u00f4m nay tamcaotrithuc.com s\u1ebd tr\u00ecnh b\u00e0y chi ti\u1ebft v\u1ec1 c\u00e1c c\u00f4ng th\u1ee9c t\u00ednh c\u01b0\u1eddng \u0111\u1ed9 d\u00f2ng \u0111i\u1ec7n v\u00e0 nh\u1eefng b\u00e0i t\u1eadp v\u00ed d\u1ee5 c\u01a1 b\u1ea3n \u0111\u1ec3 c\u00e1c b\u1ea1n… <\/p>\n","protected":false},"author":9,"featured_media":8237,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[449,462],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/8231"}],"collection":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/comments?post=8231"}],"version-history":[{"count":0,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/8231\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media\/8237"}],"wp:attachment":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media?parent=8231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/categories?post=8231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/tags?post=8231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}