2. An LRC ac series circuit has R= 15 2, L= 25 mH, and C= 30 uF. The circuit is connected to a 120-V (rms) ac source with frequency 200 Hz. a) If the rms current flowing in the circuit is 7.25 A, what is the average power dissipated by the circuit? b) If the same voltage source was hooked up only across the resistor, what would the power dissipated be? Notice that this value is larger...having the inductor and capacitor in the circuit lowers the power output because the circuit is not being run at its "resonant frequency".
2. An LRC ac series circuit has R= 15 2, L= 25 mH, and C= 30 uF. The circuit is connected to a 120-V (rms) ac source with frequency 200 Hz. a) If the rms current flowing in the circuit is 7.25 A, what is the average power dissipated by the circuit? b) If the same voltage source was hooked up only across the resistor, what would the power dissipated be? Notice that this value is larger...having the inductor and capacitor in the circuit lowers the power output because the circuit is not being run at its "resonant frequency".
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter33: Inductors And Ac Circuits
Section: Chapter Questions
Problem 80PQ
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