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Question

An electric charge is placed at the origin (0, 0) of X-Y co-ordinate system. Two points A and B are situated at and (2, 0) respectively. The potential difference between the points A and B will be :

A

4.5 volt

B

9 volt

C

zero

D

2 volt

Hard

Solution

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Correct option is
C

zero

The distance of point A from origin is
The distance of point B from origin is
Potential at A due to charge Β Β is Β  as
and potential at B is Β  as
Potential difference between A and B volt.

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