what are the factors that influence the heat develoed in a conductor that carry current
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When current flows through a conductor, heat energy is generated in the conductor. The heating effect of an electric current depends on three factors:
- The resistance, R of the conductor. A higher resistance produces more heat.
- The time, t for which current flows. The longer the time the larger the amount of heat produced
- The amount of current, I. the higher the current the larger the amount of heat generated.
Hence the heating effect produced by an electric current, I through a conductor of resistance, R for a time, t is given by H = I2Rt. This equation is called the Joule’s equation of electrical heating.
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