Question

A conducting sphere of radius R = 20 cm is given a charge Q = 16 µC. What is `vecE` at centre?

Options

• 3.6 x 10⁶ N/C

• 1.8 x 10⁶ N/C

• Zero

• 0.9 x 10⁶ N/C

Answer 1

Zero

Explanation:

Inside a conductor, the electric field is always zero.