1.A sinusoidal voltage wave has an RMS value of 70.71 V and a frequency of 60 HZ. Determine the value of the voltage 0.0014 second after the wave crosses the wt axis. 2. The voltage and current of an AC circuit are as follows e= 141.4 sm 377t V and i= 10sin (377t - 150) A. Find the phase angle. 3. Determine the average power delivered to networks having the following input voltage and current. a. e= 100 sin ( wt+ 40 degree) i= 20 sin ( wt + 60 degree) b. e= 150 sin ( wt -70 degree) i = 3 sin ( wt - 50 degree)

1.A sinusoidal voltage wave has an RMS value of 70.71 V and a frequency of 60 HZ. Determine the value of the voltage 0.0014 second after the wave crosses the wt axis. 2. The voltage and current of an AC circuit are as follows e= 141.4 sm 377t V and i= 10sin (377t - 150) A. Find the phase angle. 3. Determine the average power delivered to networks having the following input voltage and current. a. e= 100 sin ( wt+ 40 degree) i= 20 sin ( wt + 60 degree) b. e= 150 sin ( wt -70 degree) i = 3 sin ( wt - 50 degree)

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.2MCQ: If the rms phasor of a voltage is given by V=12060 volts, then the corresponding v(t) is given by...

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