Get Answers to all your Questions

header-bg qa

Suppose the drift velocity v_{d} in a material varied with the applied electric field E as v_{d}\, \alpha \, \sqrt{E} Then V - I graph for a wire made of such a material is best given by :

 

  • Option 1)

  • Option 2)

  • Option 3)

  • Option 4)

 

Answers (3)

best_answer

As we learnt in

Vd is directly proportional to E -

v_{d} \alpha E  :

greater the electric field larger will be the drift velocity.

-

 

I=ne\Delta V_{d}

Given V_{d}\propto \sqrt{e}   or\: i\propto \sqrt{E}

i^{2}\propto E\: or\:i^{2}\propto V


Option 1)

This option is incorrect 

Option 2)

This option is incorrect 

Option 3)

This option is correct 

Option 4)

This option is incorrect 

Posted by

Aadil

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

C

 

Posted by

Aggoju sai

View full answer