Usage, in metering terms, is the simple total of electricity used over a period measured in which unit?

Usage, in metering terms, is the simple total of electricity used over a period measured in which unit?

• A. kW
• B. kWh
• C. Amps
• D. Volts

Answer: (B)

Usage in metering terms is the total energy consumed over a period, measured in kilowatt-hours (kWh). This unit represents energy, which is the amount of work done by electricity over time. A key distinction is that kilowatts (kW) measure power—the instantaneous rate of energy use at a moment in time—whereas kilowatt-hours accumulate that energy over time. For example, running a 1 kW appliance for one hour uses 1 kWh of energy. Amps measure current, and volts measure electrical pressure—they indicate the flow and potential, not the total energy used. That’s why usage is expressed as kWh.

Usage in metering terms is the total energy consumed over a period, measured in kilowatt-hours (kWh). This unit represents energy, which is the amount of work done by electricity over time. A key distinction is that kilowatts (kW) measure power—the instantaneous rate of energy use at a moment in time—whereas kilowatt-hours accumulate that energy over time. For example, running a 1 kW appliance for one hour uses 1 kWh of energy. Amps measure current, and volts measure electrical pressure—they indicate the flow and potential, not the total energy used. That’s why usage is expressed as kWh.