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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
anser 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/4πεd

  here r =d

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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

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