What term refers to the rate at which work is done or energy is used?

Power is the term that refers to the rate at which work is done or energy is used. It is a measure of the amount of energy consumed or generated in a given amount of time. In electrical terms, power is typically calculated using the formula P = VI, where P is power, V is voltage, and I is current. This relationship highlights that power quantifies how quickly electrical energy is converted to other forms of energy, like heat, light, or motion.

Understanding power is essential for electricians because it helps determine how much energy a circuit is utilizing and assists in designing systems that meet energy requirements without exceeding capacity. This knowledge ensures safety and efficiency in electrical installations and devices, making it a fundamental concept in the field of electricity and electronics.