why do equipotential surfaces crowd near a point charge?

Asked by Malavika Umesh | 11th Sep, 2014, 09:41: PM

Expert Answer:

The potential near a point charge decreases inversely with distance.
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Hence, as the distance from charge increases the potential decreases tremendously.
So, the potential near the charge is large and far from the charge it is very less.
 
Now, equipotential surface is a circular surface at which the potential is equal at that distance from the point charge.
Since the potential is large near the charge, the surfaces are crowded near it. The distance between two equipotential surfaces increases as one moves away from the charge.
 

Answered by Romal Bhansali | 12th Sep, 2014, 11:47: AM