{"id":2014,"date":"2023-05-25T05:08:12","date_gmt":"2023-05-24T22:08:12","guid":{"rendered":"https:\/\/www.tneutron.net\/elektro\/?p=2014"},"modified":"2023-05-24T11:27:54","modified_gmt":"2023-05-24T04:27:54","slug":"hukum-kirchoff-listrik","status":"publish","type":"post","link":"https:\/\/www.tneutron.net\/elektro\/hukum-kirchoff-listrik\/","title":{"rendered":"Hukum Kirchoff Listrik"},"content":{"rendered":"

Untuk menyelesaikan perhitungan rangkaian listrik atau jala-jala, seorang ahli ilmu alam dari Jerman bernama Gustav Kirchoff telah menemukan dua cara yang kemudian cara ini menjadi hukum yang dikenal dengan \u201cHukum Kirchoff\u201d.
\nHukum Kirchoff I tentang Arus
\n<\/strong>Hukum Kirchoff I untuk rangkaian atau jala-jala listrik berbunyi : \u201cJumlah aljabar dari arus listrik pada suatu titik percabangan selalu sama dengan nol\u201d Dalam gambar 4.1 menerangkan hukum Kirchoff I sebagai berikut :
\n\"image\"<\/a>
\nGambar 4.3 Titik percabangan arus<\/p>\n

Dari gambar di atas arah arus I2 dan I3 berlawanan dengan arah arus I1, I4, dan I5. Jadi pada titik percabangan A berlaku :
\nI1 + I4 + I5 \u2013 I2 \u2013 I3 = 0 atau I1 + I4 + I5 = I2 + I3
\nSehingga persamaan untuk Hukum Kirchoff dapat ditulis dengan bentuk umum
\n\u01a9 I\u00a0 = 0<\/strong><\/p>\n

Contoh penerapan Hukum Kirchoff 1 adalah seperti rangkaian dibawah ini yang merupakan aplikasi sebagai pembagi arus.
\n\"image\"<\/a>
\nGambar 4.4. Gambar Rangkaian Pembagi Arus<\/p>\n

Persamaan-persamaan yang didapatkan dari rangkaian di atas adalah sebagai berikut :
\nArus \uf0e0 i = i1 + i2 dan Tegangan \uf0e0 V = i1 . R1 = i2 . R2<\/p>\n

Hukum Kirchoff II tentang tegangan
\n<\/strong>Hukum Kirchoff II ini berhubungan dengan rangkaian listrik tertutup yang menyatakan : \u201cDi dalam rangkaian tertutup, jumlah aljabar antara tegangan (V) dengan kerugian-kerugian tegangan selalu sama dengan nol\u201d Hukum ini secara umum dapat ditulis dengan rumus : \u03a3V =\u03a3 R x I Dalam gambar 4.5 dengan tidak memperhatikan kerugian tegangan di dalam baterai (tahanan dalam baterai dianggap kecil) maka : V \u2013 (I.R) = 0 atau E = I. R Ini sesuai dengan Hukum Ohm.
\n\"image\"<\/a>
\nGambar 4.5 Rangkaian listrik tertutup<\/p>\n

Dalam rangkain listrik arus searah untuk meperoleh suatu tegangan tertentu dapat menggunakan suatu kombinasi tahanan tertentu , rangkaian seperti ini disebut rangkaian pembagi tegangan. Rangkaian pembagi Tegangan yang sederhana dapat ditunjukkan oleh gambar 4.6 dibawah ini
\n\"image\"<\/a>
\nGambar 4.6. Rangkaian Pembagi Tegangan<\/p>\n

Besarnya arus yang mengalir dalam rangkaian adalah
\n\"image\"<\/a><\/p>\n

Tegangan pada R1 adalah\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Tegangan pada R2 adalah
\n\"image\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Untuk menyelesaikan perhitungan rangkaian listrik atau jala-jala, seorang ahli ilmu alam dari Jerman bernama Gustav Kirchoff telah menemukan dua cara<\/p>\n","protected":false},"author":1,"featured_media":2013,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[2414],"tags":[2476,2478,2483,2477,2484,2481,2479,2482,2480,2485],"class_list":["post-2014","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-rangkaian-listrik-dasar","tag-hukum-kirchoff","tag-hukum-kirchoff-1-dan-2","tag-hukum-kirchoff-1-dan-2-ppt","tag-hukum-kirchoff-2","tag-hukum-kirchoff-2-adalah","tag-hukum-kirchoff-3","tag-hukum-kirchoff-arus","tag-hukum-kirchoff-fisika","tag-hukum-kirchoff-pdf","tag-hukum-kirchoff-pertama"],"yoast_head":"\nHukum Kirchoff Listrik - TN Elektro<\/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:\/\/www.tneutron.net\/elektro\/hukum-kirchoff-listrik\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Hukum Kirchoff Listrik - 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