Question

Compare the cost of using a kettle with a power rating of 2kW and a kettle rated 1.2kW(no A and V concern)

(a) The 2kW kettle will consume more electricity and cost more to use than the 1.2kW kettle.
(b) The 1.2kW kettle will consume more electricity and cost more to use than the 2kW kettle.
(c) Both kettles will consume the same amount of electricity and cost the same to use.
(d) The cost difference depends on the specific electricity rates in the area.

Answer 1

The 2kW kettle and the 1.2kW kettle will consume the same amount of electricity and cost the same to use.

Step-by-step explanation:

The correct answer is (c) Both kettles will consume the same amount of electricity and cost the same to use.

The power rating of a kettle is a measure of how much electrical power it consumes. In this case, the 2kW kettle consumes 2 kilowatts (2000 watts) of power, while the 1.2kW kettle consumes 1.2 kilowatts (1200 watts) of power. The power rating does not directly determine the cost of using the kettle, as the cost depends on the time the kettle is used and the electricity rate in the area.

However, assuming both kettles are used for the same amount of time, they will consume the same amount of electricity and cost the same to use. The difference in power rating only indicates that the 2kW kettle can heat water faster than the 1.2kW kettle.