Call Support +91-85588-96644
TCYonline

Login

Sign Up

Please enter a Username or Email ID
Please enter a password
Keep me logged in
Please enter your name
Please enter your mobile number
You can't leave Captcha Code empty
By submitting this form, you agree to the Terms & Privacy Policy.
OR

Sign Up via Facebook

Sign Up via Google

Sign Up via Twitter

Download Software
Tests given

Download TCY App

App Image
Discussion

Medical Entrance (NEET ,AIIMS,JIPMER,AFMC,State Exams)

Posted on Feb 17, 2018 11:40 AM

Conductivity of semi conductors increased in heating but it decreases in case of conductors why?

Reply


Please type your answer before submitting.
Submit

Because in conductor on increasing the temp tau( time period between collision of two elecron ) decreases and hence frift velocity decreases but resistivity increases by eqn I = neAVd nnin semiconductor no of electron increasrs as compare to tau more and hence current increases on increasing temperature.

Conductivity depends on temperature coefficient of resistance

Evoparationn