Question

One kilowatt-hour (kWh) is the amount of work or energy generated when one kilowatt of power is supplied for a time of one hour. A kilowatt-hour is the unit of energy used by power companies when figuring your electric bill. Determine the number of joules of energy in one kilowatt-hour.

Answer 1

Answer:

The energy in one kilowatt-hour is $36\times10^{5}\ J$

Explanation:

Given that,

Power = 1 kW

Time = 1 hour

One kilowatt-hour (kWh) is the amount of work or energy generated when one kilowatt of power is supplied for a time of one hour

We need to calculate the energy

Using formula of energy

$E=p\times t$

Where, P = power

t = time

Put the value into the formula

$E=1\times10^{3}\times3600$

$E=36\times10^{5}\ J$

Hence, The energy in one kilowatt-hour is $36\times10^{5}\ J$