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Consider a system of three charges q//3,...

Consider a system of three charges `q//3, q//3 and -2q//3` placed at point A, B and C respectively as show in the figure. If the radius of the circles is R and `angleCAB=60^(@)` then the electric field at centre O is ………………

A

`(q)/(8piin_(0)R^(2))`

B

`(q^(2))/(54piin_(0)R^(2))`

C

`(q)/(6piin_(0)R^(2))`

D

0

Text Solution

Verified by Experts

The correct Answer is:
C
Net electric field due to both charges `(q)/(3)` will get cancelled. So, electric field of O is `E=(1)/(4piepsilon_(0))((2q//3))/(R^(2))`
`E=(q)/(6piepsilon_(0)R^(2))`
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