What is the formula to find the peak value from the average value?

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Study for the NEIEP Electrical Fundamentals Test. Use flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

What is the formula to find the peak value from the average value?

Explanation:
For a sine wave that is fully rectified, the average value of the waveform over a cycle is 2 times the peak value divided by π. In formula form, Vavg = (2/π) · Vpeak. To get the peak value from the average, multiply by the inverse: Vpeak = (π/2) · Vavg ≈ 1.57 · Vavg. So the peak is about 1.57 times the average. The other options don’t match this relationship.

For a sine wave that is fully rectified, the average value of the waveform over a cycle is 2 times the peak value divided by π. In formula form, Vavg = (2/π) · Vpeak. To get the peak value from the average, multiply by the inverse: Vpeak = (π/2) · Vavg ≈ 1.57 · Vavg. So the peak is about 1.57 times the average. The other options don’t match this relationship.

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