Question

3. The amount of heat energy produced in5 minutes by an electric heater rated at1000 W is?
(a) 2 * 10%)
(c) 410)
(b) 3 * 10%)
(d) 300 )​

Answer 1

Answer:

300kj

Explanation:

I hope this is helpful

Answer 2

Given:

P = 1000W

t = 5 min = 5x60 = 300s

To Find:

Heat energy E

Solution:

P = E/t

E = = P(t)

E = 1000(300)

E = 3 x 10^5 J

The amount of heat energy produced in 5 minutes by an electric heater rated at 1000 W is 3 × 10^5 J.