Question
Assertion : The temperature coefficient of resistance is positive for metals and negative for p-type semiconductor.
Reason : The effective charge carriers in metals are negatively charged whereas in p-type semiconductor they are positively charged.
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(a) If both assertion and reason are true and the reason is the correct explanation of the assertion. |
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(b) If both assertion and reason are true but reason is not the correct explanation of the assertion. |
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(c) If assertion is true but reason is false. |
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(d) If the assertion and reason both are false. |
