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A point charge of 2 muC is kept f...

A point charge of ` 2 muC ` is kept fixed at the origin. Another point charge of ` 4 mu C ` is brought from a far point to a distance of 50cm from origin. (a) Calculate the electrostatic potential energy of the two charge system. Another charge of ` 11 muC ` is brought to a point 100 cm from each of the two charges. What is the work done ?

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