Question detail

If a device has an efficiency of 0.60, what is its efficiency expressed as a percentage?

Try the question, check the answer, then read the explanation to understand the curriculum point.

At a glance

MCQ

Type

practice

Style

Topic

Conservation and dissipation of energy

Question

  1. A. 60%
  2. B. 70%
  3. C. 50%
  4. D. 80%

Answer

60%

Explanation

To convert a decimal to a percentage, multiply by 100. Thus, 0.60 × 100 = 60%.

Common mistake

Confusing Efficiency Formats

Students often confuse decimal and percentage formats for efficiency, mistakenly stating a decimal value as a percentage.

To fix this, remember to multiply the decimal efficiency by 100 to convert it to a percentage.

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