Question = Same potential difference is applied to a goof conductor and a bad conductor of same dimensions. Which one of them produce more heat and why ?
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The restivity and hence the resistance of the good conductor will be very small as compared to that of bad conductor. Likewise, the current through the good conductor will be very large as compared to that through the bad conductor, when the same potential difference is applied across them. since heat produce in a time t is equal to VI t, more heat will be produced in the good conductor.
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