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(a) How is heat produced in a conductor ...

(a) How is heat produced in a conductor by an electric current ?
(b) What are the factors on which heat produced due to a current flowing through a conductor depend ?

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(a) Heat produced in a conductor by an electric current is due to collisions of electrons with the ions in the conductor.
(b) (i) Strength of current (ii) resistance of the conductor (iii) time for which current flows.
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