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A charge 3 mu C is released at rest from...

A charge `3 mu C` is released at rest from a point P where electric potential is (20 V). Find its kinetic energy when it reaches inifinity.

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`W_(el)=DeltaK=K_(f)-0`
`:. W_(el)")"_(P rarr oo)=qV_(P)=60 muJ` So, `K_(f)=60 mu J`
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