Assertion (A): The temperature coefficient of resistance is positive for metals and…
Physics · Class 12 · CBSE — Current Electricity
Assertion (A): The temperature coefficient of resistance is positive for metals and negative for semi-conductors.
Reason (R): The charge carriers in metals are negatively charged whereas in semiconductors they are positively charged.
- Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).
- Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).
- Assertion (A) is true, but Reason (R) is false.
- Assertion (A) is false and Reason (R) is also false.
Answer
(C) Assertion (A) is true, but Reason (R) is false.
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