Question

what is it meant by power of a heater is 2KW?​

Answer 1

Answer:

The electrci heater rating is 2kW. This means, Power of electric heater (P) = 2 kW. Time for which the cost is to be calculated (t) = 3 hours.

Answer 2

Answer: The heater dissipates or uses 2 Kilo Joule of energy per second.

Explanation:

Power in terms of physics is the amount of work done per unit of time.

Power = $\frac{Energy}{Time}$   --------------------------------(1)

Here, the heater's power refers to the heater's capacity to dissipate heat energy per unit time.

More specifically the heater dissipates or uses 2 Kilo Joule of energy per second.

In our homes, the term unit is used to determine power usage.