Alternating voltage/rms voltage

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SUMMARY

The discussion centers on calculating the root mean square (RMS) voltage from a given peak voltage in an alternating voltage scenario. The peak voltage (Vo) is specified as 50 kV with a frequency of 400 Hz. The RMS voltage is determined using the formula Vrms = Vo/√2, which approximates to Vo x 0.707. Therefore, the RMS voltage for this case is approximately 35.36 kV.

PREREQUISITES
  • Understanding of alternating current (AC) concepts
  • Familiarity with voltage definitions: peak voltage and RMS voltage
  • Basic knowledge of trigonometric functions, specifically sine
  • Awareness of electrical frequency measurements
NEXT STEPS
  • Study the derivation of RMS voltage in AC circuits
  • Learn about the implications of frequency on voltage measurements
  • Explore the use of oscilloscopes for measuring AC waveforms
  • Investigate the differences between peak, RMS, and average voltage in electrical engineering
USEFUL FOR

Electrical engineers, students studying AC circuits, and professionals involved in power systems analysis will benefit from this discussion.

lavster
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hi, this is probably really obv but say you had an alternating voltage that has peak voltage 50kV and a frequency of 400 hz and you want to write the voltage as V=Vosinwt, how do you work out V0? is it the rms voltage?

cheers
 
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Vo is the peak voltage.
The rms voltage is Vo/√2 [Vo x 0.707 approx]
 

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