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A charge Q is distribution over a metal sphere of radius R. What is the electric field and electric potential at the centre ?

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The correct Answer is:
E = 0, V = kQ/R
Electric field inside conductor ` E = 0`
` E = (dV)/(dr ) = 0 rArr V = "Constant " = (Q)/(4 pi in _ 0 R ) = k (Q)/(R ) `
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