Electric heaters are ____% efficient, but given the cost of electricity and the fact that most of the source energy is coal, they are not a very green solution unless powered by renewable energy.
A) 75
B) 84
C) 93
D) 100

Question

Quizplus · Accepted Answer

Electric heaters are considered to be 100% efficient in terms of their ability to convert electrical energy into heat. This is because all the electricity they use is converted directly into heat with no loss in the process. However, the overall environmental impact depends on the source of the electricity.

Electric Heaters Are ____% Efficient, but Given the Cost of Electricity