Question Detail

PHY 102 Test Compilation PHY 102 19 Objective Question

Question

Which of the following statements about semiconductors is TRUE?
Options
A Semiconductors are made of metals
B Resistance of semiconductors decreases with increasing temperature
Correct Answer
C Resistance of semiconductors does not depend on temperature
D Semiconductors are ohmic resistors
Correct Answer

Option B is the correct answer.

Detailed Explanation

Unlike metals, semiconductors have a negative temperature coefficient of resistance — as temperature rises, more charge carriers are thermally generated, lowering resistance.

Hint

Think about the temperature-resistance relationship that distinguishes semiconductors from metals.

Question Info