Question

With increase in temperature the conductivity of

• A. Metals increases and of semiconductor decreases.
• B. Semiconductors increases and of metals decreases.
• C. In both metals and semiconductors increase.
• D. In both metal and semiconductor decreases.

Answer 1

Answer: (B)

Semiconductors increases and of metals decreases.

Answer 2

: Semiconductors having negative temperature coefficient of resistivity whereas metals are having positive temperature coefficient of resistivity with increase in temperature the resistivity of metal increases whereas resistivity of semiconductor decreases.