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Questions  

The diagrams below show regions of equipotentials. 

 

A positive charge is moved from  A  to  B  in each diagram. 

 

 

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a
In all the four cases the work done is the same.
b
Minimum work is required to move q  in figure (I)
c
Maximum work is required to move  q  in figure (II).
d
Maximum work is required to move q in figure (III).

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detailed solution

Correct option is A

Work done is given as W=qΔVIn all the four cases the potential difference from A to B is same.∴ In all the four cases the work done is same.


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