Target Exam

CUET

Subject

Physics

Chapter

Semiconductors and Electronic Devices

Question:

Which of the following is NOT true ?

Options:

p-type semiconductor has large number of holes but still it is electrically neutral.

The resistivity of Ge increases with rise in temperature.

Energy gap decreases with doping.

None of the above.

Correct Answer:

The resistivity of Ge increases with rise in temperature.

Explanation:

The resistivity of Ge decreases with rise in temperature.