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{"id":24813,"date":"2018-03-30T17:17:36","date_gmt":"2018-03-30T10:17:36","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=24813"},"modified":"2018-03-30T17:17:36","modified_gmt":"2018-03-30T10:17:36","slug":"chuong-3-bai-14-mach-co-r-l-c-mac-noi-tiep","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/chuong-3-bai-14-mach-co-r-l-c-mac-noi-tiep\/","title":{"rendered":"Ch\u01b0\u01a1ng 3 – B\u00e0i 14: M\u1ea1ch c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp"},"content":{"rendered":"

B\u00e0i 1 (trang 79 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0Ph\u00e1t bi\u1ec3u \u0111\u1ecbnh lu\u1eadt \u00d4m \u0111\u1ed1i v\u1edbi m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp.<\/span><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

\u0110\u1ecbnh lu\u1eadt \u00d4m c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u c\u1ee7a \u0111o\u1ea1n m\u1ea1ch R, L, C m\u1eafc n\u1ed1i ti\u1ebfp: “C\u01b0\u1eddng \u0111\u1ed9 hi\u1ec7u d\u1ee5ng trong m\u1ea1ch R, L, C m\u1eafc n\u1ed1i ti\u1ebfp c\u00f3 gi\u00e1 tr\u1ecb b\u1eb1ng th\u01b0\u01a1ng s\u1ed1 c\u1ee7a \u0111i\u1ec7n \u00e1p hi\u1ec7u d\u1ee5ng gi\u1eefa hai \u0111\u1ea7u m\u1ea1ch v\u00e0 t\u1ed5ng tr\u1edf c\u1ee7a m\u1ea1ch.”<\/p>\n

B\u00e0i 2 (trang 79 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0D\u00f2ng n\u00e0o c\u00f3 c\u1ed9t A t\u01b0\u01a1ng \u1ee9ng v\u1edbi d\u00f2ng n\u00e0o \u1edf c\u1ed9t B?<\/span><\/p>\n

\"\"<\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

K\u1ebft c\u1ed9t A t\u01b0\u01a1ng \u1ee9ng c\u1ed9t B.<\/p>\n

1 \u2013 e)<\/p>\n

2 \u2013 c)<\/p>\n

3 \u2013 a)<\/p>\n

4 \u2013 a)<\/p>\n

5 \u2013 c)<\/p>\n

6 \u2013 f)<\/p>\n

B\u00e0i 3 (trang 79 SGK V\u1eadt L\u00fd 12):<\/b>Trong m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u n\u1ed1i ti\u1ebfp, c\u1ed9ng h\u01b0\u1edfng l\u00e0 g\u00ec? \u0110\u1eb7c tr\u01b0ng c\u1ee7a c\u1ed9ng h\u01b0\u1edfng?<\/span><\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

C\u1ed9ng h\u01b0\u1edfng \u0111i\u1ec7n l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng trong m\u1ea1ch R, L, C m\u1eafc n\u1ed1i ti\u1ebfp c\u00f3 ZL<\/sub>\u00a0= ZC<\/sub>\u00a0hay \u03c92<\/sup>LC = 1.<\/p>\n

\u0110\u1eb7c \u0111i\u1ec3m: T\u1ed5ng tr\u1edf m\u1ea1ch Z = R l\u00e0 nh\u1ecf nh\u1ea5t v\u00e0 I = U\/R l\u00e0 l\u1edbn nh\u1ea5t.<\/p>\n

D\u00f2ng \u0111i\u1ec7n i c\u00f9ng pha v\u1edbi \u0111i\u1ec7n \u00e1p u<\/p>\n

U = UR<\/sub><\/p>\n

UL<\/sub>\u00a0= UC<\/sub><\/p>\n

\n
\n

B\u00e0i 4 (trang 79 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0M\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u g\u1ed3m c\u00f3 R = 20\u03a9 …<\/span><\/p>\n

\"\"<\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

M\u1ea1ch R n\u1ed1i ti\u1ebfp t\u1ee5 \u0111i\u1ec7n th\u00ec i s\u1edbm pha so v\u1edbi u m\u1ed9t g\u00f3c \u03c6. Ta c\u00f3 u = 60 \u221a2cos100\u03c0t \u21d2 i = I0 cos(100\u03c0t + \u03c6i)<\/p>\n

\"\"<\/div>\n

\n

B\u00e0i 5 (trang 79 SGK V\u1eadt L\u00fd 12):<\/b>\u00a0M\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u g\u1ed3m c\u00f3 R = 30\u03a9 …<\/span><\/p>\n

\"\"<\/p>\n

L\u1eddi gi\u1ea3i:<\/b><\/p>\n

M\u1ea1ch R n\u1ed1i ti\u1ebfp v\u1edbi cu\u1ed9n c\u1ea3m th\u00ec i tr\u1ec5 pha so v\u1edbi u m\u1ed9t g\u00f3c \u03c6.<\/p>\n

Ta c\u00f3 u = 120\u221a2cos100\u03c0t (V). \u21d2 i = I0<\/sub>\u00a0cos(100\u03c0t + \u03c6i)<\/p>\n

\"\"<\/div>\n<\/div>\n

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

B\u00e0i 1 (trang 79 SGK V\u1eadt L\u00fd 12):\u00a0Ph\u00e1t bi\u1ec3u \u0111\u1ecbnh lu\u1eadt \u00d4m \u0111\u1ed1i v\u1edbi m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp. L\u1eddi gi\u1ea3i: \u0110\u1ecbnh lu\u1eadt \u00d4m c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u c\u1ee7a \u0111o\u1ea1n m\u1ea1ch R, L, C m\u1eafc n\u1ed1i ti\u1ebfp: “C\u01b0\u1eddng \u0111\u1ed9 hi\u1ec7u d\u1ee5ng trong m\u1ea1ch R, L, C m\u1eafc n\u1ed1i […]<\/p>\n","protected":false},"author":3,"featured_media":24814,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1303],"tags":[1428,1427],"yoast_head":"\nCh\u01b0\u01a1ng 3 - B\u00e0i 14: M\u1ea1ch c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp<\/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\/chuong-3-bai-14-mach-co-r-l-c-mac-noi-tiep\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ch\u01b0\u01a1ng 3 - B\u00e0i 14: M\u1ea1ch c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 79 SGK V\u1eadt L\u00fd 12):\u00a0Ph\u00e1t bi\u1ec3u \u0111\u1ecbnh lu\u1eadt \u00d4m \u0111\u1ed1i v\u1edbi m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp. L\u1eddi gi\u1ea3i: \u0110\u1ecbnh lu\u1eadt \u00d4m c\u1ee7a d\u00f2ng \u0111i\u1ec7n xoay chi\u1ec1u c\u1ee7a \u0111o\u1ea1n m\u1ea1ch R, L, C m\u1eafc n\u1ed1i ti\u1ebfp: “C\u01b0\u1eddng \u0111\u1ed9 hi\u1ec7u d\u1ee5ng trong m\u1ea1ch R, L, C m\u1eafc n\u1ed1i […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/chuong-3-bai-14-mach-co-r-l-c-mac-noi-tiep\/\" \/>\n<meta property=\"og:site_name\" content=\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12 l\u1edbn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam\" \/>\n<meta property=\"article:published_time\" content=\"2018-03-30T10:17:36+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lop12.edu.vn\/wp-content\/uploads\/2018\/03\/1-607.png\" \/>\n\t<meta property=\"og:image:width\" content=\"369\" \/>\n\t<meta property=\"og:image:height\" content=\"266\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"H\u00e0 Trang\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"H\u00e0 Trang\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-3-bai-14-mach-co-r-l-c-mac-noi-tiep\/\",\"url\":\"https:\/\/lop12.edu.vn\/chuong-3-bai-14-mach-co-r-l-c-mac-noi-tiep\/\",\"name\":\"Ch\u01b0\u01a1ng 3 - B\u00e0i 14: M\u1ea1ch c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2018-03-30T10:17:36+00:00\",\"dateModified\":\"2018-03-30T10:17:36+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/chuong-3-bai-14-mach-co-r-l-c-mac-noi-tiep\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/chuong-3-bai-14-mach-co-r-l-c-mac-noi-tiep\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/chuong-3-bai-14-mach-co-r-l-c-mac-noi-tiep\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Ch\u01b0\u01a1ng 3 – B\u00e0i 14: M\u1ea1ch c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/lop12.edu.vn\/#website\",\"url\":\"https:\/\/lop12.edu.vn\/\",\"name\":\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/lop12.edu.vn\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/2da855e5d06b553ac0065157cc261a45\",\"name\":\"H\u00e0 Trang\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/545a8100db1147f314111301d261dc33?s=96&d=mm&r=g\",\"caption\":\"H\u00e0 Trang\"},\"url\":\"https:\/\/lop12.edu.vn\/author\/trangvth2\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Ch\u01b0\u01a1ng 3 - B\u00e0i 14: M\u1ea1ch c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lop12.edu.vn\/chuong-3-bai-14-mach-co-r-l-c-mac-noi-tiep\/","og_locale":"en_US","og_type":"article","og_title":"Ch\u01b0\u01a1ng 3 - B\u00e0i 14: M\u1ea1ch c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp","og_description":"B\u00e0i 1 (trang 79 SGK V\u1eadt L\u00fd 12):\u00a0Ph\u00e1t bi\u1ec3u \u0111\u1ecbnh lu\u1eadt \u00d4m \u0111\u1ed1i v\u1edbi m\u1ea1ch \u0111i\u1ec7n xoay chi\u1ec1u c\u00f3 R, L, C m\u1eafc n\u1ed1i ti\u1ebfp. 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