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Two spherical conductors A and B of radi...

Two spherical conductors A and B of radii 1mm and 2mm are separated by a distance of 5 cm and are uniformly charged. If the spheres are connected by a conducting wire then in equilibrium condition, the ratio of the magnitude of the electric fields at the surfaces of spheres A and B is

A

`4:1`

B

`1:2`

C

`2:1`

D

`1:4`

Text Solution

Verified by Experts

The correct Answer is:
C

At equilibrium, the potential on the surface of both spheres will be same. Also, for rqual potential
`E prop 1/("radius")rArr E_(A)/E_(B)=r_(B)/r_(A)=2/1`
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