In electrical circuits, the time rate of doing work is expressed in?

The time rate of doing work in electrical circuits is expressed in watts. Watts are a measure of power, which quantifies how much energy is used or produced per unit of time. Specifically, one watt is defined as one joule of energy transferred per second. This implies that if an electrical device uses power measured in watts, it indicates the rate at which it can convert electrical energy into other forms of energy, such as heat, light, or mechanical energy.

The other options reflect different electrical measurements: volts measure potential difference or electric pressure, amperes measure current or the flow of electric charge, and ohms measure resistance or the opposition to current flow. While all these measurements are vital in understanding electrical circuits, watts specifically encapsulate the concept of power, linking energy usage to time, which is crucial in both theoretical and practical applications in electrical engineering and physics.