A kettle takes in 2000J of energy per second. It transfers 1500J as useful heat energy and 500J is wasted as sound energy. Calculate the efficiency of the kettle.
answer that question pls
Answers
Answered by
0
Answer:
efficiency=0.75
Explanation:
Efficiency=useful energy/input energy.
Here, input energy=kettle takes energy.
useful energy=kettle uses as heat energy.
Similar questions