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A point-charge A of 5xx10^(-9)C is place...

A point-charge A of `5xx10^(-9)C` is placed in air. Calculate the work done while
a point-charge B of `3xx10^(-9)C` completes one revolution in a circle around the charge A. The radius of the circle is `6xx10^(2)m`.

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PATHFINDER-ELECTROSTATIC POTENTIAL AND CAPACITANCE-QUESTION BANK
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