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can anyone help me to solve this problem.....

An isolated conducting sphere which radius R is 6.85cm has a charge q=1.25nc. Determine how much potential energy stored in conducting sphere?

I try to solve it but can't get the ans....the hint given is by using c=4(pi)ER

answer is =103nJ

thanks for helping

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# Homework Help: How much of potential energy stored in conducting sphere

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