Question

The heat produced by 100W heater in 2 minutes is equal to (a) 10.5kJ (b) 16.3kJ (c) 12.0kJ (d) 14.2kJ

Answer 1

Answer:

The correct option is (C): 12.0 KJ

Explanation:

Given data:

Power = 100 w

Time "t" = 2 minutes

time (t) = 2 min = 120 sec.

Formula to calculate heat produced.

Work done to produce heat (W) = P x t

                                                    = 100 x 120

                                                    = 12000 J

                                                   = 12.0 KJ