Q.1) Derive an expreesion for potential energy of system of two point charges.
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Derive an expression for the electric potential energy of a system of two point charges in the absence of an external electric field. ... i.e., dV=-Edx for unit +ve test charge. Now replacing '+1C' by ′qB′,′dV′ by dW and 'E' by F, we get. dW=-Fdx,dx-displacement between C & B.
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