Define Joule’s law of heating
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Joule's law, when an electric current passes through a conductor, heat H is produced, which is directly proportional to the resistance R of the conductor, the time t for which the current flows, and to the square of the magnitude of current I.
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When an electric current passes through a conductor for some time, the conductor gets heated up. Thus heating of a conductor due to the flow of electric current through it is known as Joule's law of heating.
Heat generated H=i^2Rt
where i is the amount of current flowing though the conductor, R is the resistance of conductor and t is the time for which the current has flown.
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