TS EAMCET · Physics · Current Electricity
A piece of copper and another of germanium are cooled from room temperature to The resistance of
- A copper increases and germanium decreases
- B both decreases
- C both increases
- D copper decreases and germanium increases
Answer & Solution
Correct Answer
(D) copper decreases and germanium increases
Step-by-step Solution
Detailed explanation
The resistance of conductors increases with an increase in temperature. As copper is a conductor, so its resistance decreases with temperature fall. The resistance of semiconductors decreases with an increase in temperature. As germanium is a semiconductor, so its resistance…
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