Question

500,000 J of energy is consumed in 500 s. What is the power consumed?

Answer 1

Given: W = 500,000 J, t = 500 s

Electric power is the rate of doing electric work:

$$P = \frac{W}{t}$$

$$= \frac{500000}{500}$$

$$= 1000\text{ W}$$

$$= 1\text{ kW}$$