Assertion: The resistivity of a semiconductor increases with temperature. Reason: The atoms of a semiconductor vibrate with large amplitude at higher temperatures there by increasing its resistivity.

Question

Assertion: The resistivity of a semiconductor increases with temperature. Reason: The atoms of a semiconductor vibrate with large amplitude at higher temperatures there by increasing its resistivity. (A) Both assertion and reason are true and reason is the correct explanation of assertion (B) Both assertion and reason are true but reason is not the correct explanation of assertion (C) Assertion is true but reason is false (D) Both assertion and reason are false

Tardigrade Admin · Accepted Answer

Solids whose electrical conductivity is intermediate between conductor and insulators are called semiconductor. Carbon, silicon and germanium are example of semiconductors. The temperature coefficient of resistance of semiconductors is negative that is their electrical resistance decreases ( or conductivity increases) with rise in temperature.

Q. Assertion: The resistivity of a semiconductor increases with temperature. Reason: The atoms of a semiconductor vibrate with large amplitude at higher temperatures there by increasing its resistivity.

Both assertion and reason are true and reason is the correct explanation of assertion

Both assertion and reason are true but reason is not the correct explanation of assertion

Assertion is true but reason is false

Both assertion and reason are false

Q. Assertion: The resistivity of a semiconductor increases with temperature.
Reason: The atoms of a semiconductor vibrate with large amplitude at higher temperatures there by increasing its resistivity.