Question

A hollow metal sphere of radius $5cm$ is charged such that the potential on its surface $10volts$ . The electric field at the centre of the sphere will be

• A. 50 volts/meter
• B. 10 volts/meter
• C. 5 volts/meter
• D. zero

Answer 1

The correct option is B 10 volts/meter

The potential it the surface of a hollow or conducting sphere is same as the potential at the center of .the

Sphere and any point inside the sphere.

$V=\frac{KQ}{R}$

Where $V$=surface

Potential at center of sphere is equal to $10$V.

Hence,Option $B$ is correct.