Question

What will be the potential at the centre of the sphere when a hollow metal sphere of radius $10\, cm$ is charged such that the potential on its surface is $80\, volts$ ?

• A. $0\, volts$
• B. $80\, volts$
• C. $800\, volts$
• D. $8\, volts$

Answer 1

Answer: (B)

$80\, volts$

Answer 2

Potential inside a hollow metal sphere (charged) is uniform. Thus, potential at the centre of the sphere is equal to the potential at its surface