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Three charges -q, Q and -q are placed at...

Three charges -q, Q and -q are placed at equal distances on a straight line. If the total potential energy of the system is zero, then what is the ratio `q/Q`?

A

`1 : 2`

B

`2 : 1`

C

`1 : 4`

D

`4 : 1`

Text Solution

Verified by Experts

The correct Answer is:
C
`V = (1)/(4pi in_(0)) ((q_(1) q_(2))/(r ) + (q_(1) q_(3))/(r ) + (q_(2) q_(3))/(r ))`
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