What does "Watt" measure?

"Watt" measures power in an electrical system. It is defined as the rate at which electrical energy is transferred by an electric circuit. One watt is equivalent to one joule per second and is a measure of how much work is done by an electrical current in a specific amount of time. In practical terms, it represents the amount of energy consumed by electrical devices, helping technicians understand how much power is needed to operate equipment safely and efficiently.

In the context of electrical systems, power is the product of voltage and current (as expressed in the formula: Power (W) = Voltage (V) x Current (I)). This relationship illustrates how watts, volts, and amperes are interlinked in determining the electrical performance of devices. Understanding power in watts helps technicians assess load requirements, energy efficiency, and circuit safety.