The energy transferred can be calculated using the formula:
energy = power x time
where power is given in kilowatts and time is given in minutes.
Converting the power rating of the kettle to watts:
3 kilowatts = 3,000 watts
Converting the time to seconds:
3 minutes = 180 seconds
Using the formula:
energy = 3,000 watts x 180 seconds
energy = 540,000 joules
Therefore, the energy transferred to the electric kettle in three minutes is 540,000 joules.
How much energy is transferred to an electric kettle that is rated at 3 kilowatts if it is switched on for three minutes?
1 answer
1 answer