What unit is used to measure power?

What unit is used to measure power?

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

Answer: (B)

The unit used to measure power is the watt. Power is defined as the rate at which work is done or energy is transferred over time. One watt is equivalent to one joule of energy being used or transmitted in one second. This relationship highlights that power is not about the total amount of work done, but rather how quickly that work is accomplished. For clarity, other units mentioned are related to different physical quantities. Joules measure energy, Newtons measure force, and Volts measure electric potential difference. Each of these units serves a specific purpose in physics but does not quantify power directly, making the watt the appropriate choice for measuring power.

The unit used to measure power is the watt. Power is defined as the rate at which work is done or energy is transferred over time. One watt is equivalent to one joule of energy being used or transmitted in one second. This relationship highlights that power is not about the total amount of work done, but rather how quickly that work is accomplished.

For clarity, other units mentioned are related to different physical quantities. Joules measure energy, Newtons measure force, and Volts measure electric potential difference. Each of these units serves a specific purpose in physics but does not quantify power directly, making the watt the appropriate choice for measuring power.