Physics · Transformers
Which of the following is the correct mathematical expression for the RMS value of the induced EMF (E) in a transformer primary winding, where f = frequency, N = number of turns in primary winding, and φmax = maximum flux in the core?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1φmax = E
- 24.44 f φmax = E
- 34.44 f N φmax = E✓
- 4φmax / (4.44 f N) = E
Correct answer
4.44 f N φmax = E
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