Question

If the electric potential of the inner shell is 10 V and that of the outer shell is 5 V, then the potential at the centre will be :

• A. 10 V
• B. 5 V
• C. 15 V
• D. zero

Answer 1

Answer: (A)

10 V

The electric field inside a shell is zero so the potential inside shell is equal to the potential at surface of the shell. Since the potential of inner shell is 10 V so at the centre potential is also same i.e 10 V.