As the temperature increases, the electrical resistance

Question

As the temperature increases, the electrical resistance, decreases for both conductors and semiconductors, increases for conductors but decreases for semiconductors, decreases for conductors but increases for semiconductors, increases for both conductors and semiconductors

MARKS App · Accepted Answer

For conductors, on increasing temperature, thermal agitation of free electrons increases. Hence, resistance increases. For Semiconductors, number of holes or charge carriers increases with increase in temperature. Hence, resistance increases for conductors but decreases for semiconductors. ⇒ Answer is (b)

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