Question

In what unit does the domestic electric meter measure the electric energy consumed. State the value of this unit in SI unit.

Answer 1

1. Basic unit of electrical energy is $joule$ or$watt-second$.
2. Electrical energy is said to be $1Joule$when $1ampere$ current flows through the circuit for a unit second when a potential difference $1Volt$ is applied across the terminal.
3. Another commercial unit of electrical energy is the kilowatt-hour $\left(kWh\right)$.
4. $1kwh$ energy is defined as the energy consumed by an $1kilowatt$appliance in one hour.