Power in AC Circuits Video Lessons

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Problem: In the circuit shown below, the AC generator supplies an EMF of the form ε = 15sin (100t - π/3) volts. A student measures the current to be I = 6 sin(100t) amps. Thus, the generator voltage lags the current by π/3 radian (i.e. 60°). The average power delivered by the AC generator is:a. 22.5 Wb. 45.0 Wc. 39.0 W

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Problem Details

In the circuit shown below, the AC generator supplies an EMF of the form ε = 15sin (100t - π/3) volts. A student measures the current to be I = 6 sin(100t) amps. Thus, the generator voltage lags the current by π/3 radian (i.e. 60°). The average power delivered by the AC generator is:

a. 22.5 W

b. 45.0 W

c. 39.0 W

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Power in AC Circuits concept. You can view video lessons to learn Power in AC Circuits. Or if you need more Power in AC Circuits practice, you can also practice Power in AC Circuits practice problems.

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Our expert Physics tutor, Juan took 2 minutes and 28 seconds to solve this problem. You can follow their steps in the video explanation above.