Question

Which of the following devices would you expect to consume the most energy for each hour that it operates? a portable tape recorder an electric space heater a desk lamp an electric can openerwhich of the following devices would you expect to consume the most energy for each hour that it operates? the answer is an electric space heater?

Answer 1

Answer: electric space heater

Explanation: The consumption of electrical energy per unit hour is given by the power rating on the electrical appliance. The power rating depends on the electric current it withdraws to operate and the resistance of the appliance.

Portable tape recorder, a desk lamp and an electric can opener are small devices as compared to an electric space heater and with draw less current. thus, the power rating of the space heater is higher than other given appliances and it consumes more energy per hour.

Answer 2

You are correct, the answer is an electric space heater.
The reason for this is because the heating element generates heat by resisting the flow of current. For this reason, other similar devices such as irons take up a large amount of energy as well.