# 2.20 Two charged conducting spheres of radii a and b are connected to each other by a wire. What is the ratio of electric fields at the surfaces of the two spheres? Use the result obtained to explain why charge density on the sharp and pointed ends of a conductor is higher than on its flatter portions.

Answers (1)

Since both spheres are connected through the wire, their potential will be the same

Let electric field at A and B be .

Now,

also

Also

Therefore,

Therefore ratio of the electric field is b/a.

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