Question

The electric volt is a measure of electrical potential. Identify which of the following can be defined as a volt.

• A. Opposition to electrical motion
• B. Number of particles in motion
• C. Work per unit charge
• D. Field strength per unit of force
• E. Electrostatic discharge

Answer 1

The correct option is C Work per unit charge

eV is defined as the kinetic energy gained by a unit charge $e$ when it is accelerated by a potential difference of 1 volt. As we know kinetic energy is the measure of work done, therefore, volt can be defined as work done per unit charge.