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Electrification

A conducting ...

Question

A conducting wire is connected between two conducting spheres of equal size have a charge of -3C and +1C respectively. Find out the new charge on each sphere ?

A

-4C

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B

+4C

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C

-1C

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D

+1C

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E

Zero

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Solution

The correct option is D -1C
When the two spheres are connected by a wire, the charge will flow between them till the potential between them will be same. Thus, the charge on each sphere is the average charge i.e $Q_{a v} = \frac{- 3 + 1}{2} = - 1 C$

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