Question

The surface charge density of a sphere of radius r, is σ. It is placed at a point A. The electric field intensity at B due to this sphere is E. Another charge sphere of radius 2r is placed at B. If the intensity at the centre of A and B is E/2, then the surface charge density of B is ?

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Answer 1

Answer:

Hey here is your answer

Explanation:

This may help you

Answer 2

the answer is 7sigma/32

hope this helps