Questions
When an uncharged metallic sphere A is brought near a positively charged metallic sphere B, then
a
potential of A decreases and potential of B increases.
b
potential of A increases and potential of B decreases
c
potential of A remains unchanged and potential of B increases
d
potential of A increases and potential of B remains unchanged.
detailed solution
Correct option is B
Negative charge is induced on the nearer surface of A and equal amount of positive charge is induced on the surface which is away from B. Potential of A due to induced charges does not change but due to the positive charge on B, potential of A increases. Since the induced negative charge on A is nearer to B and induced positive charge is away from B, potential of B decreases.Talk to our academic expert!
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