The temperature dependence of resistances of

Question:

The temperature dependence of resistances of $\mathrm{Cu}$ and undoped Si in the temperature range 300 $400 \mathrm{~K}$, is best described by :-

  1. Linear decrease for $\mathrm{Cu}$, linear decrease for Si.

  2. Linear increase for $\mathrm{Cu}$, linear increase for Si.

  3. Linear increase for $\mathrm{Cu}$, exponential increase for $\mathrm{Si}$

  4. Linear increase for $\mathrm{Cu}$, exponential decrease for $\mathrm{Si}$

Correct Option: , 4

Solution:

Factual

$\mathrm{Cu}$ is conductor so with increase in temperature, resistance will increase Si is semiconductor so with increase in temperature resistance will decrease

Leave a comment

Close

Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now

eSaral Gurukul

NEET

JEE Main

JEE Advanced

Our Telegram Channel

All Study Material