Delmar's Standard Textbook Of Electricity
7th Edition
ISBN: 9781337900348
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 18, Problem 9RQ
The R-L parallel circuit shown in Figure 18-1 has an apparent power of 465 VA and a true power of 320 W. What is the reactive power?
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What will be magnitude of the total circuit impedance of a series LR circuit excited by a 100 Hz ac source? The resistance is 40 ohm and the inductance is 4 mF.
QUESTION 6
A resistor, a capacitor, and an inductor are connected in series with a mystery component. The resistor has a resistance of 1000, the capacitor has a reactance of
5000, and the inductor has a reactance of 2000. The total impedance of the circuit is 100-j4000. What is the mystery component?
O there is no mystery component
O inductor
O resistor
O capacitor
Q = 2000 VAR, pf = 0.9 (leading). The power in complex form is
Chapter 18 Solutions
Delmar's Standard Textbook Of Electricity
Ch. 18 - 1. When an inductor and a resistor are connected...Ch. 18 - 2. An inductor and resistor are connected in...Ch. 18 - 3. What is the impedance of the circuit in...Ch. 18 - 4. What is the power factor of the circuit in...Ch. 18 - How many degrees out of phase are the current and...Ch. 18 - 6. In the circuit shown in Figure 18-1, the...Ch. 18 - 7. A resistor and an inductor are connected in...Ch. 18 - The R-L parallel circuit shown in Figure 18-1 has...Ch. 18 - The R-L parallel circuit shown in Figure 18-1 has...Ch. 18 - How many degrees out of phase are the total...
Ch. 18 - Incandescent lighting of 500 W is connected in...Ch. 18 - You are working on a residential heat pump. The...Ch. 18 - Assume that the circuit shown in Figure 18-1 is...Ch. 18 - Assume that the current flow through the resistor,...Ch. 18 - Assume that the circuit in Figure 18-1 has an...Ch. 18 - Assume that the circuit in Figure 18-1 has a power...Ch. 18 - In an R-L parallel circuit, R=240 and XL=360. Find...Ch. 18 - In an R-L parallel circuit, IT=0.25 amps, IR=0.125...Ch. 18 - In an R-L parallel circuit, ET=120 volts,...Ch. 18 - In an R-L parallel circuit, ET=48 volts, IT=0.25...Ch. 18 - In an R-L parallel circuit, ET=240 volts, R=560 R...Ch. 18 - In an R-L parallel circuit, ET=240 volts, R=560,...Ch. 18 - In an R-L parallel circuit, ET=208 volts, R=2.4k,...Ch. 18 - In an R-L parallel circuit, ET=480 volts, R=16,...Ch. 18 - In an R-L parallel circuit, IT=1.25 amps, R=1.2k,...Ch. 18 - In an R-L parallel circuit, true power =4.6 watts...Ch. 18 - An R-L parallel circuit is connected to 240 volts...Ch. 18 - An R-L parallel circuit has an applied voltage of...
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