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Հարց 228

What value of an AC signal produces the same power dissipation in a resistor as a DC voltage of the same value?

  1. The peak-to-peak value
  2. The peak value
  3. The RMS valueՃիշտ պատասխան
  4. The reciprocal of the RMS value

Բացատրություն

The RMS value is defined precisely as the AC value that heats a resistor exactly as much as the same numeric DC value would. Peak and peak-to-peak values are larger than RMS for a sine wave and would overstate the power.

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Հարց 228: What value of an AC signal produces the same power… · FCC General Class (Element 3) · Questena