Question

The efficiency of the transfer of energy from a fuel to electricity is approximately

A. 3%.
B. 35%.
C. 50%.
D. 65%.
E. 97%.

Answer 1

The efficiency of the transfer of energy from a fuel to electricity is 35%.

Step-by-step explanation:

The efficiency of the transfer of energy from a fuel to electricity is a measure of how much of the energy in the fuel is converted to useful electrical energy. In this case, we are asked to determine the efficiency of the transfer.

To calculate efficiency, we use the formula:

Efficiency = (Useful energy output / Total energy input) x 100%

Based on the given answer options, none of the provided values match exactly. However, the closest option to the actual efficiency value of coal-burning power stations is option B. 35%. Therefore, the answer is 35%.