Assertion The resistivity of a semiconductor increases in temperature. Reason In a conducting solid, the rate of collisions between free electrons and ions increases with increase of temperature.

Question

Assertion The resistivity of a semiconductor increases in temperature. Reason In a conducting solid, the rate of collisions between free electrons and ions increases with increase of temperature. (A) If both Assertion and Reason are true and the Reason is correct explanation of the Assertion (B) If both Assertion and Reason are true but Reason is not correct explanation of the Assertion (C) If Assertion is true but Reason is false (D) If Assertion is false but the Reason is true

Tardigrade Admin · Accepted Answer

Resistivity of semiconductor decreases with temperature. The atoms of a semiconductor vibrate with large amplitudes at higher temperatures there by increasing conductivity not resistivity.

Q. Assertion The resistivity of a semiconductor increases in temperature. Reason In a conducting solid, the rate of collisions between free electrons and ions increases with increase of temperature.

If both Assertion and Reason are true and the Reason is correct explanation of the Assertion

If both Assertion and Reason are true but Reason is not correct explanation of the Assertion

If Assertion is true but Reason is false

If Assertion is false but the Reason is true

Resistivity of semiconductor decreases with temperature. The atoms of a semiconductor vibrate with large amplitudes at higher temperatures there by increasing conductivity not resistivity.

Q. Assertion The resistivity of a semiconductor increases in temperature.
Reason In a conducting solid, the rate of collisions between free electrons and ions increases with increase of temperature.