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Number of collisions per second between free electrons in a wire is a measure of electric resistance of the wire

When a finite current passes through a conductor, no heat can be dissipated in it

e.m.f can never be electrostatic in nature

An Ohmic resistor must obey Ohm’s law at the particular temperature

answer is B.

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Detailed Solution

When a finite current is flown through a conductor heat will dissipate through it.

$Q = i^{2} Rt$

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