Three charges Q0 - q and q are placed at...

Three charges `Q_0` - q and q are placed at the vertices of an isosceles right angle triangle as in the future. The net electrostatic potential energy is zero if `Q_0` is equal to

A

`q/4`

B

`q/sqrt8`

C

`sqrt(2)q`

D

q

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The correct Answer is:

B

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