The kilowatt hour is unit of what quantity or quantities?

Answer 1

A kilowatt hour (KwH)

is the units by which your electricity supply company measure how much electricity you have used.

Kilowatt hours are calculated by multiplying the kilowatts by the amount of hours in use.

For example a tea kettle is roughly "drawing" 2 kilowatts when turned on.

This means it uses 2000 watts when turned on.(kilo=1000)

So if your kettle was turned on for an hour, it would use up

2000 watts X 1 hour =

2000 watt hours =

2 kilowatt hours.

A 100 watt light bulb left on for 8 hours would use;

100 watts X 8 hours =

800 watt hours =

0.800 kw hours

Lets add these 2 together

2KwH + 0.800KwH= 2.800 Kwh

=

2.8Kwh
So when you look at your bill, you will see
Units used in Kwh

2.8 x unit price (lets say 20p a unit)

=

56p or 0.56 pounds.

Obviously your total bill will account for way more Kwh

but it should be easy enough (if not tedious) to

work out an estimate for electricity usage before you get your bill. Some electricity regulators have helpful calculators on their websites.

Answer 2

Answer

A kilowatt hour (kW.h) is an unit of measurement for energy. It is the amount of energy expended at the rate of one kilowatt over a period of one hour.

The kilowatt hour is the unit used by your electricity supplier for the purpose of billing you for the amount of energy you consume.

In the SI system, the unit of measurement for energy is the joule (1 kW.h = 3.6 megajoules). This is the amount of energy expended at the rate of one watt over a period of one second.

1 kWh= 1 000 watt hour

Answer 3

5 kilowatt of electricity used in 2 hours is 5 x 2 = 10 kilowatt-hours

Scroll down to related links below.

Additional Answer

A kilowatt hour (kW.h) is a unit of measurement for energy, and is used by electricity companies for the purpose of billing consumers for the energy they purchase. In science and engineering, it is more usual to measure energy in joules (J).

A kilowatt hour represents the energy used at the rate of one kilowatt over a period of one hour, where the kilowatt is a unit for power (rate of energy consumption or expenditure).

Answer 4

"Kilowatt hour" is a unit of energy.

It's the total amount of energy converted or consumed in one hour, at the rate of 1,000 joules per second (1,000 watts).

Answer 5

The kilowatt-hour is a unit of energy. The basic metric unit of energy is the Joule. If you use energy at the rate of 1 Joule per second, you are using '1 watt' of power. If you use 1,000 Joules per second, you're using '1 kilowatt' of power. If you keep it up for an hour (3,600 seconds), you've used a total of 3,600,000 Joules of energy. The other ways to express that amount of energy are: 3,600,000 watt-seconds 3,600 kilowatt-seconds 1 kilowatt-hour.

Answer 6

The kilowatt-hour is a unit of energy. It is equal to 3.6 megajoules

Answer 7

Of energy. A kWh is the same as 3.6 million watt-seconds, that is, 3.6 million Joule.

Answer 8

Kilowatt hour is vector quantity