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How to find charge density if electric field is given

How to find charge density if electric field is given
 

Grade:12

1 Answers

Jeet
16 Points
3 years ago
We have V=IR
Also R=resiativity*l/A 
Thus,V=I/A(resiativity*l)
Further,E is the magnitude of uniform electric field in conductor whose lenght is l,then,
V=El
Thus El=J*l*resistivitl
Thus,E=J*resistivity

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