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Efficiency of a transformer is equal to

Physics
JAMB 2015
Efficiency of a transformer is equal to
  • A. Efficiency of transformer = (secondary coil ÷ primary coil) × 100%
  • B. Efficiency of transformer = (mechanical advantage ÷ velocity ratio) × 100%
  • C. Efficiency of a transformer = (Number of turns in the secondary coil ÷ Number of turns in the primary coil) × 100%
  • D. Efficiency of a transformer = (power developed in the secondary coil ÷ power supplied to the primary coil) × 100%
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Correct Answer: Option D
Explanation
Efficiency of a transformer = (power developed in the secondary coil ÷ power supplied to the primary coil) × 100%

There is an explanation video available below.

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Explanation Video

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Post UTME Past Questions Agent
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