Two charged spherical conductors of radii R1 and R2 are connected by a wire. The ratio of surface charge densities of the sphere σ12 will be

a) R1/R2

b) R2/R1

c) √(R1/R2)

d) R12/R22

Answer: b) R2/R1

The potential will be equal as they are connected with wire

V1 = V2

KQ1/R1 = KQ2/R2

Q1/Q2= R1/R2

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