What term is defined as the amount of charge held by a body as compared to another point or body, usually measured in volts?

• A. Permeability
• B. Power
• C. Potential
• D. Potentiometer

Answer: (C)

Electrical potential describes the energy per unit charge at a point in an electric field. Voltage is the difference in that potential between two points, so it’s expressed in volts. The term that fits the description—“the amount of energy held by a body per unit charge compared to another point or body, usually measured in volts”—is electrical potential, i.e., potential. Permeability is about how materials respond to magnetic fields, Power is the rate at which energy is transferred, and a potentiometer is a device that varies resistance. The idea behind potential is the energy state a unit charge would have relative to another point, which is why it’s the correct concept here.