Question

a heater of 500 W works at 220 V. What is the heat developed by the heater if the time for which the current passed is 10s?

Answer 1

Answer:

5000 J of heat energy is produced in 10 s

Explanation:

P = 500 W

V = 220 V

T = 10 s

H = P x T                    (Joules Law of heating,        $H = I^{2} R T$

   = 500 x 10                                                         →   H = P x T )

   = 5000 J