Question

The resistivity ($\rho$) of semiconductor varies with temperature. Which of the following curve represents the correct behavior

• A.
• B.
• C.
• D.

Answer 1

Answer: (C)

Answer 2

A semiconductor starts conduction more as the temperature increases. It means resistance decreases with increase in temperature. So, if temperature increases, its resistivity decreases. Also, 𝜌 = 𝑚 /𝑛𝑒^2𝜏 As Temperature increase, 𝜏 decreases but n increases and n is dominant over 𝜏.