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Two spherical conductors A and B of radi...

Two spherical conductors A and B of radii 1 mm and 2mm are separated by a distance of 5 cm and are uniformly charged. If the sphers are connected by a conducting wire then in equilibrium condition, the ratio of the magnitude of the electric fields at the surfaces of sphers 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
When the two conducting spheres are connected by a conducting wire, charge will flow from one sphere (having higher potential) to other (having lower potential) till both acquire the same potential.
Therefore `E=V/R implies E_1/E_2=r_2/r_1=2/1=2:1`
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