Question

energy output \div energy input = energy efficiency
energy efficiency \times 100 = energy efficiency\\%
energy output = 15 units
energy input = 100 units
what is the energy efficiency percentage?
99%
35%
15%

Explanation:

Step1: Calculate Energy Efficiency

Using the formula \( \text{Energy Efficiency} = \frac{\text{Energy Output}}{\text{Energy Input}} \), substitute the given values: \( \text{Energy Output} = 15 \) units and \( \text{Energy Input} = 100 \) units. So, \( \text{Energy Efficiency} = \frac{15}{100} = 0.15 \).

Step2: Calculate Energy Efficiency Percentage

Using the formula \( \text{Energy Efficiency}\% = \text{Energy Efficiency} \times 100 \), substitute the value of Energy Efficiency from Step 1: \( 0.15 \times 100 = 15\% \).

Answer:

15%