ISRO Electrical Engineering (EE) 2015 - Question 45

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A sine wave as has a peak value of 12 Volts. Its crest factor is

  • A. 1.732
  • B. 1.11
  • C. 1.415
  • D. 0.706

Answer: C. 1.415

Explanation: Crest factor is the ratio of peak value to RMS value. For a sinusoidal waveform, Crest Factor = Vpeak / Vrms = Vm / (Vm/√2) = √2 ≈ 1.414 (closest option 1.415).

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