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If potential difference across a conductor is doubled while keeping its length and number density of electron constant. its drift velocity will be

  • Option 1)

    Doubled  

  • Option 2)

    Halved

  • Option 3)

    Constant                                                         

  • Option 4)

    Can’t say

 

Answers (1)

best_answer

As we learnt

 

Drift velocity -

 

v_{d}=\frac{E}{\rho ne}=\frac{V}{\rho l ne}

- wherein

\sigma=\frac{1}{\rho}\rightarrow Relation

J=\frac{I}{A}\rightarrow Relation

E=\frac{V}{l}\rightarrow Relation

 

 Drift velocity is directly proportional to potential difference. If potential difference is doubled the drift velocity will be doubled.

 


Option 1)

Doubled  

Option 2)

Halved

Option 3)

Constant                                                         

Option 4)

Can’t say

Posted by

Avinash

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