15. For the circuit in Fig. 15.92: a. Find the total impedance Z, in polar form. b. Draw the impedance diagram. c. Find the current I and the voltages VR and V₁ in phasor form. d. Draw the phasor diagram of the voltages E, VR, and VL, and the current I. f. e. Verify Kirchhoff's voltage law around the closed loop. Find the average power delivered to the circuit. Find the power factor of the circuit, and indicate whether it is leading or lagging. g. Find

Delmar's Standard Textbook Of Electricity
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Author:Stephen L. Herman
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Chapter21: Resistive-capacitive Series Circuits
Section: Chapter Questions
Problem 2PP: Assume that the voltage drop across the resistor, ER, is 78 V; the voltage drop across the...
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15. For the circuit in Fig. 15.92:
a. Find the total impedance Z, in polar form.
b. Draw the impedance diagram.
c. Find the current I and the voltages VR and V, in phasor
form.
d. Draw the phasor diagram of the voltages E, VR, and VL,
and the current I.
e. Verify Kirchhoff's voltage law around the closed loop.
f. Find the average power delivered to the circuit.
g. Find the power factor of the circuit, and indicate whether
it is leading or lagging.
h. Find the sinusoidal expressions for the voltages and cur-
rent if the frequency is 60 Hz.
i. Plot the waveforms for the voltages and current on the
same set of axes.
+
41
R = 80
www
VR
E = 100 V Z 0°
ZT
+
XL = 60
voo
+ VL
1
e=
Transcribed Image Text:15. For the circuit in Fig. 15.92: a. Find the total impedance Z, in polar form. b. Draw the impedance diagram. c. Find the current I and the voltages VR and V, in phasor form. d. Draw the phasor diagram of the voltages E, VR, and VL, and the current I. e. Verify Kirchhoff's voltage law around the closed loop. f. Find the average power delivered to the circuit. g. Find the power factor of the circuit, and indicate whether it is leading or lagging. h. Find the sinusoidal expressions for the voltages and cur- rent if the frequency is 60 Hz. i. Plot the waveforms for the voltages and current on the same set of axes. + 41 R = 80 www VR E = 100 V Z 0° ZT + XL = 60 voo + VL 1 e=
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