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  • Resistivity increases withOption: 1 increasing size of materialOption: 2 increasing number

Resistivity increases with

Option: 1

increasing size of material


Option: 2

increasing number of electron/volume


Option: 3

decrease in relaxation time


Option: 4

none of the above


Answers (1)

best_answer
Resistivity -\rho=\frac{m}{ne^{2}\tau}

It is independent of the shape and size of the body i.e. l and A

 \rho \: \alpha \: \frac{1}{\tau }

Therefore, the resistivity increases with a decrease in relaxation time

 

 

Posted by

jitender.kumar

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