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Three identical charges are placed on th...

Three identical charges are placed on three vertices of a square. If the force acting between `q_(1)` and `q_2` is `F_(12)` and between `q_(1)` and `q_(3)` is `F_(13)`, then = ..........

A

`(1)/(2)`

B

2

C

`(1)/(sqrt(2))`

D

`sqrt(2)`

Text Solution

Verified by Experts

The correct Answer is:
A

`f_(12)= (Kq^(2))/(a^(2))`
`f_(13)= (Kq^(2))/(sqrt(2)a)^(2)= (Kq^(2))/(2a^(2))`
`(f_(13))/(f_(12))= (1)/(2)`
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