Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 21, Problem 7RQ
An RC series circuit is connected to a 120-V, 60-Hz power source. The resistor is 25
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An RC circuit is connected to a 120-V, 60-Hz power source. The resistor is 25 ohms and has a voltage drop of 65 volts. What is the capacitance of the capacitor?
An RC series circuit is connected is connected to 120V, 60Hz power source. The resistor is 25 ohms and has a voltage drop of 65 volts. What is the capacitance of the capacitor in uf?
The attached image shows a circuit with an AC voltage source, a resistor, inductor, and capacitor connected in series. The circuit has the following characteristics:
Resistor resistance: 10 ohm
Capacitor capacitance: 0.05 F
Inductor inductance: 13 H
Current Amplitude: 4 A
Voltage amplitude across the source: 60 V
Frequency at the source: 0.3 Hz
Voltage amplitude across the resistor: 35 V
Voltage amplitude across the capacitor: 37 V
Voltage amplitude across the inductor: 80 V
(a) Calculate the RMS voltages from the amplitudes above. From the RMS voltages across the capacitor, inductor and resistor, calculate the RMS voltage of the AC source.
Hint: Vrms = V0/sqrt(2)
Vrms = sqrt( (Vrms,R)2 + (Vrms, L - Vrms, C)2 )
(b) Calculate the RMS value of the current
(c) Using the resistance, capacitance, inductance, and the frequency of the AC voltage, calculate the impedance Z. From this, and the previously measured value of Vrms, find the RMS value of the current in the circuit.
Chapter 21 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 21 - In a pure capacitive circuit, does the current...Ch. 21 - A series circuit contains a 20- resistor and a...Ch. 21 - An RC series circuit has a power factor of 76%....Ch. 21 - An RC series circuit has a total impedance of 84 ....Ch. 21 - A capacitor has a capacitive reactance of 50 when...Ch. 21 - A 15-F AC capacitor is connected in series with a...Ch. 21 - An RC series circuit is connected to a 120-V,...Ch. 21 - An RC series circuit is connected to a 240-V,...Ch. 21 - Prob. 1PPCh. 21 - Assume that the voltage drop across the resistor,...
Ch. 21 - Assume the circuit shown in Figure 21-1 has an...Ch. 21 - Assume the circuit in Figure 21-1 has a power...Ch. 21 - In a series RC circuit, ET=240 volts, R=60, and...Ch. 21 - In a series RC circuit, ET=120 volts, R=124, and...Ch. 21 - In a series RC circuit, ET=208 volts, IT=2.4...Ch. 21 - In a series RC circuit, ET=460 volts and =44. Find...Ch. 21 - In a series RC circuit, ET=240 volts at 60 Hz. An...Ch. 21 - In a series RC circuit, the apparent power is 4250...
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