A hollow metallic sphere of 8cm diameter is charged with 4 x 10 8C. The potential on its surface will be_________________? March 22, 2019 – by admin A hollow metallic sphere of 8cm diameter is charged with 4 x 10 8C. The potential on its surface will be_________________? A. 900 voltsB. 9000 volts C. 90 volts D. zero