Chapter(8) Electric Potential

(1) Electric potential difference is measured in_____ .

• ampere

• watt

• volt

Work done is independent of the _____ taken by the charge.

• path

• method

• force

The electric lines of force are _____ to the equipotential surfaces.

• parallel

• perpendicular

• none of these

The earth is a good_____ of electricity.

• conductor

• insulator

• semiconductor

The unit newton per coulomb is the same as ______ .

• Wm^-2

• Vm^-1

• Vm^-2

The electric potential at infinite distance from a point charge is _____.

• zero

• infinity

• none of these

The amount of work done in moving a charge of +5µC from one point to another on an equipotential surface of 10⁴ V is ____.

• 5x10^-2J

• 5x10⁴J

• zero

The radius of an equipotential surface of 300V surrounding a point charge of +1.5µC is

• 45m

• 450m

• 4.5m

The earth can receive as well as give out quite a number of _____.

• protons

• electrons

• neutrons

On an equipotential surface, the charges are_____.

• moving

• stationary

• none of these