1.Heat =I.I.R.t and also 2.Heat =V.V.t/R,from the first equation we conclude that Heat is directly proportional to the resistance but from 2nd equation we can conclude that Heat is inversely proportional to resistance.How?????!
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When current flows through an electric circuit, the collision between the electrons and atoms of wire causes heat to be generated. How much heat is generated during current flowing through a wire and on what conditions and parameters do the heat generation depend? James Prescott Joule an English physicist, coined a formula which explains this phenomenon accurately. This is known as Joule’s law.
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