a negative charge released from a point P moves along the line ab the potential at a is 15 v and it where is uniformly along a b find the potential of B
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5
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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 ,
V
B
=20 V>V
A
(=15V)
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7
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