Electrical power is measured in which unit?

Electrical power is measured in which unit?

• A. Watt
• B. Volt
• C. Coulomb
• D. Joule

Answer: (A)

Power in an electrical circuit is the rate at which electrical energy is delivered or consumed. It’s given by P = V × I, the product of voltage and current. Since energy is measured in joules and time in seconds, power is joules per second, which defines the watt. So one watt equals one volt times one ampere (1 W = 1 V × 1 A). The other units correspond to different quantities: volt is electrical potential difference, coulomb is electric charge, and joule is energy.

Power in an electrical circuit is the rate at which electrical energy is delivered or consumed. It’s given by P = V × I, the product of voltage and current. Since energy is measured in joules and time in seconds, power is joules per second, which defines the watt. So one watt equals one volt times one ampere (1 W = 1 V × 1 A). The other units correspond to different quantities: volt is electrical potential difference, coulomb is electric charge, and joule is energy.