Question

Name the quantity whose unit is (i) kilowatt, and (ii) kilowatt-hour.

Answer 1

Let us get some idea about units. Physical quantities are measured using units. The kilogramme unit of mass, for example, is defined as the mass of a specific block of platinum. Imperial (foot, pound, second), CGS (centimetre, gram, second), and MKS units are among them (metre, kilogram, second).

Complete answer:
Let us first talk about the first bit of the question. The amount of energy transmitted or converted per unit time is referred to as electricity. The watt, which is equivalent to one joule per second in the International System of Units, is the unit of power. Power is often referred to as movement in older works. A scalar quantity is power.

Kilowatt is the abbreviation for kilowatt-hour. A kilowatt is a power measurement that equals $1,000$ watts. A kilowatt hour ($kWh$) is a unit of energy measurement. A $1,000$ watt drill, for example, requires $1,000$watts ($1{\text{ }}kW$) of electricity to operate and consumes $1{\text{ }}kWh$of energy per hour. Let's talk about the second bit of the question.

Hence, the kilowatt-hour is an energy unit that equals 3600 kilojoules. Electric utilities use the kilowatt-hour as a billing unit for electricity supplied to customers.

Note: The higher the wattage, the greater the amount of energy consumed. A kilowatt hour, or kWh, is a unit of measurement for how much energy is consumed over time. If you left a $100$-watt light bulb on for ten hours, it would have used $1,000$ watts, or $1$ kWh of electricity.