THE PRACTICE STUDIO

Go slowly. Ask why. Make it yours.

PRACTICE · MEMBERSIntermediate · Single correct

PRACTICE / RMS quantities

The useful voltage measure

A sinusoidal source has peak voltage 100√2 V.

Find its rms voltage.

Organize the givens & assumptions
  • Vpeak = 100√2 V

Pure sinusoidal voltage with zero DC offset; average over complete cycles.

  1. A0 V0\ \mathrm V
  2. B100 V100\ \mathrm V
  3. C502 V50\sqrt2\ \mathrm V
  4. D200 V200\ \mathrm V

Try it on paper first. Free sample problems in every collection include the complete reasoning: find one in this collection →