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A positively charged ball hangs from long silk thread. We put a positive charge 'q' at a point and measure F/q, then it can be predicted that field E

A positively charged ball hangs from long silk thread. We put a positive charge 'q' at a point and measure F/q, then it can be predicted that field E

Grade:12

2 Answers

Arun
25750 Points
4 years ago
as the positive charge q is brought near the ball due to the mutual repulsion the distance of ball from the charge increases hence the predicted field E is greater than the measured field F/q(F decreases with increasing distance).
Khimraj
3007 Points
4 years ago

Because of the presence of positive test charge q0

 

 

 

decrease i.e., Actual Electric field will be greater than F/q0

 

 

, in front of positively charged ball, charge 

 

on the ball will be redistributed, less charge on the front half surface & more charge on the

back half surface. As a result of this net force F between ball and point charge will

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