Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsGauss LawMedium2 minQB
PhysicsMediumsingle choice

A cube is made from six thin insulating square faces, each square having side d and carrying a uniformly distributed charge Q. The magnitude of electric flux leaving the sixth face, due to the electric field of the other five faces, is . The magnitude of electrostatic force on each face of cube is F. Then :-

Options:

Answer:
B
Solution:

Total flux out of the cube , so by symmetry flux through one face .

The sixth face's own charge contributes .

. Hence (B).

Stream:JEESubject:PhysicsTopic:ElectrostaticsSubtopic:Gauss Law
⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...