Question

A negative charge release from a point A moves along the line Ab .the potential at air 15v and it varies uniformly along AB. The potential at B

Answer 1

Answer:

work done (w) on moving a charge q through a potential difference would be :-W=qΔV

when charge moves spontaneously,

W<0 and as charge is negetive , 

q<0. the potential difference Δ V>0=v 

must increase the only probable answer is , 

VB=20 V>VA(=15V)

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Answer 2

Answer:

The potential at B may be 15v.

Explanation: