JEE PHYSICS MCQ: CURRENT ELECTRICITY

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Wires

{P}

and

{Q}

are having same resistance at room temperature. When heated, resistance of '

P

' increases, and that of '

Q

' decreases, we conclude that

View answer and explanation

Correct option: C

{P}

is semiconductor and

{Q}

is metal

Option B (

{P}

is metal and

{Q}

is semiconductor) is correct because metals typically have a positive temperature coefficient of resistance, while semiconductors have a negative temperature coefficient.

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