JEE Main2018PhysicsElectrostaticsActual
A charge Q is placed at a distance a 2 above the centre of a square surface of side length a . The electric flux through the square surface due to the charge would be?
Options
- AQ 6 ϵ 0
- BQ 2 ϵ 0
- CQ 3 ϵ 0
- DQ ϵ 0
Correct answer
A. Q 6 ϵ 0
Step-by-step solution
Charged particle can be considered at centre of a cube of side a , and given surface represents its one face. So, flux ϕ = Q 6 ϵ 0 .