A unit positive charge has to be brought from infinity to a mid-point – InterviewSolution

1.	A unit positive charge has to be brought from infinity to a mid-point between two charges, 20 μC and 10 μC separated by a distance of 50 m. How much work will be required by an external force?
Answer» A unit positive charge has to be brought from infinity to a mid-point between two charges, $20 μ C$ and $10 μ C$ separated by a distance of $50 m$ . How much work will be required by an external force?

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