What electrical unit is defined as the rate at which work is done or energy is transferred?

The unit that is defined as the rate at which work is done or energy is transferred is the Watt. One Watt is equivalent to one Joule per second, illustrating the relationship between energy transfer and time. This makes it a fundamental unit in electrical engineering and physics for quantifying the power involved in any electrical system.

When electrical devices operate, they consume power measured in Watts. For instance, a lightbulb consuming 60 Watts converts electrical energy into light and heat at that rate. Understanding the Watt as a measure of power highlights its critical role in various applications, from household appliances to industrial machinery. The concept of power as a rate of doing work is vital for engineers and technicians working in electrical fields, assisting them in making informed decisions about the energy consumption and efficiency of devices.