Power is the rate at which energy is consumed. When 1 J of energy is consumed in one second, the power consumed is 1 watt.
The microwave consumes 1.5 kJ of energy.
In joules, the energy consumed is 1500 J
[tex] P=\frac{E}{t} [/tex]
Here, E is the energy consumed in time interval t.
The power rating of the microwave is therefore,
[tex] P=\frac{1500J}{1 s} \\ =1500 W
[/tex]
Thus, the power rating of the oven is 1500 W or 1.5 kW
