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Two charges 6muC and 3muC are kept 9 cm ...

Two charges `6muC and 3muC` are kept 9 cm apart in free space. Calculate the work done to move `3muC" by "3cm` towards `9muC`.

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The correct Answer is:
`"Work done "=(1)/(4pi epsi_(0)) .q_(1)q_(2) [1/r_(2)/-1/r_(1)]`
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NEW JOYTHI PUBLICATION-ELECTROSTATIC POTENTIAL AND CAPACITANCE-Practice Problems For Self Assessment
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