Question Detail

PHY 102 Current Electricity Objective Question

Question

How is the efficiency (η) of a circuit defined?
Options
A The ratio of power generated to power output.
B The product of power output and power generated.
C The ratio of power output to power generated.
Correct Answer
D The difference between power output and power generated.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 13 states, "Efficiency, η, of a circuit is the ratio of the power output to the power generated: η = Power output / Power generated".

Hint

Efficiency is usually (useful output / total input).

Question Info