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A particle of mass 2 g and charge 1 muC ...

A particle of mass 2 g and charge `1 muC` is held at rest on a frictionless surface at a distance of 1m from a fixed charge of 1 mC. If the particle is released it will be repelled. The speed of the particle when it is at distance of 10 m from fixed charge is :

A

`100ms^(-1)`

B

`90ms^(-1)`

C

`60ms^(-1)`

D

`45ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
gain in KE = loss in PE
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