In 1847, a German Physicist, Kirchhoff, formulated two fundamental laws of\u00a0electrici These laws are of tremendous importance from network simplification
\npoint of\u00a0Kirchhoffs Current Law (KCL).<\/p>\n
The law can be stated as,\u00a0The total current flowing towards a junction point is equal to the total away from\u00a0that junction point. Another way to state the law is.
\nThe algebraic sum of all the current meeting at a junction point is always zero. The\u00a0word algebraic means considering the signs of various currents.
\nSign convention: Currents flowing towards a junction point are assumed to be\u00a0positive w currents flowing away from a junction point assumed to be negative.
\nIn fig consider currents I1 and I4 are positive while I2, I3 and I5 arc negative.<\/p>\n
Applying\u00a0KCL<\/p>\n
I1- I2 – I3+ I4 – I5 = 0<\/p>\n
Kirchhoffs Voltage Law (KVL)<\/strong><\/p>\n The law can be stated as,\u00a0“In any network, the algebraic sum of the voltage drops across the circuit elements\u00a0of any closed path (or loop or mesh) is equal to the algebraic sum of the e.m.f s in\u00a0the path”<\/em><\/em><\/p>\n In other words, “the algebraic sum of all the branch voltages, around any closed\u00a0path or closed loop is always zero.” <\/em><\/em><\/em><\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" Kirchoff Law Lecture Notes In 1847, a German Physicist, Kirchhoff, formulated two fundamental laws of\u00a0electrici These laws are of tremendous importance from network simplification point of\u00a0Kirchhoffs Current Law (KCL). The law can be stated as,\u00a0The total current flowing towards a junction point is equal to the total away from\u00a0that junction point. Another way to state … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":""},"categories":[4773],"tags":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/28661"}],"collection":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/comments?post=28661"}],"version-history":[{"count":0,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/posts\/28661\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/media?parent=28661"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/categories?post=28661"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kopykitab.com\/blog\/wp-json\/wp\/v2\/tags?post=28661"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\u03a3 (All the emf s in a closed loop ) = 0<\/p>\n