Two charged conducting spheres of radii a and b are connected to each other by a wire. The ration of electric fields at the surfaces of two spheres is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Let 
and 
be the charge and 
and 
be the capacitance of two spheres.
The charge flows from the sphere at higher potential to the other at lower potential, till their potentials becomes equal.
After sharing. The charges on two spheres would be
…(i)
Also 
From (i) 
Ratio of surface charge on the two spheres
(using (ii))
The ratio of electric fields at the surfaces of two spheres.
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