Electrostatics> hcv...

A positive charge Q is placed in front of a conducting solid cube at a distance d from its centre.Find the electric field at the centre of the cube due to the charge appearing on its surface.

sudarshan gupta , 15 Years ago

Grade Upto college level

2 Answers

Badiuddin askIITians.ismu Expert

Last Activity: 15 Years ago

Dear sudarshan

We know, Electric field at a point due to a given charge
‘E’ = Kq /r²

Where q = charge, r = Distance between the point and the charge
so E =q/4πεd²

here r =d

Please feel free to post as many doubts on our discussion forum as you can.
If you find any question Difficult to understand - post it here and we will get you
the answer and detailed solution very quickly.

We are all IITians and here to help you in your IIT JEE preparation.

All the best.

Regards,
Askiitians Experts
Badiuddin

Priyank Sisodia

Last Activity: 6 Years ago

Read again the question that we have to find the electric field at the centre due to the "charges apearing on the surface" and not by the point charge, there will be charge induction on the surface of cube due to point charge outside , but the intensity inside thetconductor is zero the opposite field will cancel out but the answer is same, but wrong explaination