Unformatted text preview: V RMS . If V RMS is 120 Volts, what is V Peak ? 5. Some high power electrical equipment runs on threephase power. The power plug has three voltages present: ∀ t ∈ Reals, v A ( t ) = V Peak sin (2 π 60 t ) v B ( t ) = V Peak sin (2 π 60 t + 2 π/ 3) v C ( t ) = V Peak sin (2 π 60 t − 2 π/ 3) Each of the three phases are 120 ◦ out of phase from the others. If we measure the voltage between any two phases we are ±nding the RMS voltage of v A ( t ) − v B ( t ), or v B ( t ) − v C ( t ), etc. Find the relationship between this RMS voltage and V Peak . Using the value of V Peak from the previous problem, what value of V RMS should we see with our measurement? 1...
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 Fall '08
 ZADEH
 VP eak sin

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