The inner sphere is earthed of two concentric spheres of radii a and 
and the outer sphere is given a charge Q then the charge on inner sphere is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Let the charge of the inner sphere be q.
Given that the charge of outer sphere is Q
As the inner sphere is earthed, the potential is zero. Thus, the net potential is
q 
Therefore, charge of the inner sphere is 
.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
Identify the false statement.
When P is normal to the surface, the polarisation is numerically equal to the
The total dipole moment of dielectric with polar molecules in absence of an external electric field…
The earth has volume V and surface area A, then capacitance would be
If the circumference of a sphere is 2 m, then capacitance of sphere in water would be
Two charged spheres connected with a wire don't exchange their charges, if both spheres have