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If a potential difference V is applied across a conductor, the drift speed of an electron in it is v. If the potential difference is doubled, then the drift speed of the electron becomes nv, where n is _________ 

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detailed solution

Correct option is B

vd=IneA

 Now, I=V/R

So,vd=VneAR

vd'=2IneA=2vd
So where V is doubled drift speed is also doubled 

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detailed solution

Correct answer is 2

vd=IneA

 Now, I=V/R

So,vd=VneAR

vd'=2IneA=2vd
So where V is doubled drift speed is also doubled 

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?

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