Electronics Fundamentals: Circuits, Devices & Applications
8th Edition
ISBN: 9780135072950
Author: Thomas L. Floyd, David Buchla
Publisher: Prentice Hall
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Chapter 9, Problem 10TFQ
To determine
Whether the statement is true or false.
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The hypotenuse side of the power triangle is equal to
Reactive power
Active power
Apparent power
True power
from the figure, calculate the reactive power resulting from C1 and also L1 in the circuit
In a pure inductive load, (without resistive elements), the apparent power is
a) Equal to the real power
b) Greater than the reactive power
c) Equal to the reactive power
d) None of the above
Chapter 9 Solutions
Electronics Fundamentals: Circuits, Devices & Applications
Ch. 9 - The area of the plates of a capacitor is...Ch. 9 - A capacitance of 1200pF is the same as 1.2F.Ch. 9 - When two capacitors are in series with a voltage...Ch. 9 - When two capacitors are in parallel with a voltage...Ch. 9 - Prob. 5TFQCh. 9 - Prob. 6TFQCh. 9 - Prob. 7TFQCh. 9 - Prob. 8TFQCh. 9 - Voltage leads current in a capacitor.Ch. 9 - Prob. 10TFQ
Ch. 9 - Prob. 1STCh. 9 - Prob. 2STCh. 9 - Prob. 3STCh. 9 - A capacitance of 1000pF is smaller than 0.01F...Ch. 9 - Prob. 5STCh. 9 - Prob. 6STCh. 9 - Prob. 7STCh. 9 - Prob. 8STCh. 9 - Prob. 9STCh. 9 - Prob. 10STCh. 9 - Prob. 11STCh. 9 - Prob. 12STCh. 9 - Prob. 13STCh. 9 - A sinusoidal voltage is applied across a...Ch. 9 - Prob. 15STCh. 9 - Prob. 1TSCCh. 9 - Prob. 2TSCCh. 9 - Prob. 3TSCCh. 9 - Prob. 4TSCCh. 9 - Determine the cause for each set of symptoms....Ch. 9 - Find the capacitance when Q=50CandV=10V. Find the...Ch. 9 - Convert the following values from microfarads to...Ch. 9 - Convert the following values from picofarads to...Ch. 9 - Convert the following values from farads to...Ch. 9 - What size capacitor is capable of storing 10mJ of...Ch. 9 - A mica capacitor has a plate area of 20cm2 and a...Ch. 9 - An air capacitor has plates with an area of 0.1m2....Ch. 9 - A student wants to construct a 1F capacity out of...Ch. 9 - A student decide to construct a capacitor using...Ch. 9 - At ambient temperature (25oC), a certain capacitor...Ch. 9 - A 0.001F capacitor has a positive temperature...Ch. 9 - In the construction of a stacked-foil mica...Ch. 9 - What type of capacitor has the higher dielectric...Ch. 9 - Show how to connect an electrolytic capacitor...Ch. 9 - Determine the value of the typographically labeled...Ch. 9 - Name two types of electrolytic capacitors. How do...Ch. 9 - Prob. 17PCh. 9 - Five 1000pF capacitors are in series. What is the...Ch. 9 - Find the total capacitance for each circuit in...Ch. 9 - For each circuit in Figure 9-65 determine the...Ch. 9 - The total charge stored by the series capacitors...Ch. 9 - Determine CT for each circuit in Figure 9-67.Ch. 9 - Determine the total capacitance and total charge...Ch. 9 - Assume you need a total capacitance of 2.1F in a...Ch. 9 - Determine the time constant for each of the...Ch. 9 - Determine how long it takes the capacitor to reach...Ch. 9 - In the circuit of Figure 9-69, the capacitor...Ch. 9 - In Figure 9-70, the capacitor is charged to 25 V....Ch. 9 - Repeat Problem 27 for the following time...Ch. 9 - Repeat Problem 28 for the following time...Ch. 9 - Deterimine XC for a 0.0047F capacitor at each of...Ch. 9 - What is the value of the total capacitive...Ch. 9 - For the circuit in Figure 9-72, find the reactance...Ch. 9 - Prob. 34PCh. 9 - A sinusoidal voltage of 20Vrms produces an rms...Ch. 9 - A 10 kHz voltage is applied to a 0.0047F...Ch. 9 - Determine the true power and the reactive power in...Ch. 9 - If another capacitor is connected in parallel with...Ch. 9 - Ideally, what should the reactance of a bypass...Ch. 9 - Two series capacitors (one 1F, the other of...Ch. 9 - Prob. 41PCh. 9 - How long does it take C to charge to 8 V in Figure...Ch. 9 - Detemine the time constant for the circuit in...Ch. 9 - In Figure 9-74, the capacitor initially is...Ch. 9 - The capacitor in Figure 9-75 is uncharged when the...Ch. 9 - Determine the ac voltage across each capacitor and...Ch. 9 - Find the value of C1 in Figure 9-77.Ch. 9 - How much does the voltage across C5andC6 change...Ch. 9 - If C4 in Figure 9-76 is open determine the voltage...Ch. 9 - Prob. 50PCh. 9 - Prob. 51PCh. 9 - Prob. 52PCh. 9 - Prob. 53PCh. 9 - Prob. 54P
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- Assume the circuit shown in Figure 21-1 has an apparent power of 432 VA and a true power of 345.6 W. The capacitor has a capacitance of 15.8919 F, and the frequency is 60 Hz. Find the missing values. ET ER EC IT IR IC Z R XC VA432 P345.6W VARSC PF C15.8919Farrow_forwardAn R-L series circuit contains two resistors and two inductors. The resistors dissipate powers of 96 watts and 125 watts. The inductors have reactive powers of 100 VARs and 78 VARs. What is the power factor?arrow_forwardAssume the circuit in Figure 21-1 has a power factor of 68%, an apparent power of 300 VA, and a frequency of 400 Hz. The capacitor has a capacitance of 4.7125 F. Find the missing values. ET ER EC IT IR IC Z R XC VA300 P VARSC PF68 C4.7125Farrow_forward
- The circuit in Figure 24-2 is connected to a 120-V, 60-Hz line. The resistor has a resistance of 36 , the inductor has an inductive reactance of 40 , and the capacitor has a capacitive reactance of 50 . ET120VITZVAPFERIRR36PELILXL40VARsLLECICXC50VARsCCarrow_forwardIn an R-L series circuit, the apparent power is 560 VA, PF = 62%. Find reactive power.arrow_forwardThe circuit in Figure 24-2 is connected to a 60-Hz line. The apparent power in the circuit is 48.106 VA. The resistor has a resistance of 12 . The inductor has an inductive reactance of 60 , and the capacitor has a capacitive reactance of 45 . ETITZVA48.106PFERIRR12PELILXL60VARsLLECICXC45VARsCCarrow_forward
- The circuit in Figure 24-2 is connected to a 1000-Hz line. The resistor has a current flow of 60 A, the inductor has a current flow of 150 A, and the capacitor has a current flow of 70 A. The circuit has a total impedance of 4.8 . ETITZ4.8VAPFERIR60ARPELIL150AXLVARsLLECIC150AXCVARsCCarrow_forwardCapacitive Circuits Fill in all the missing values. Refer to the formulas that follow. XC=12fCC=12fXCf=12CXc Capacitance XC Frequency 38 F 60 Hz 78.8 400 Hz 250 pF 4.5 k 234 F 10 kHZ 240 50 Hz 10 F 36.8 560 nF 2 MHz 15 k 60 Hz 75 nF 560 470 pF 200 kHz 6.8 k 400 Hz 34 F 450arrow_forwardA resistor of 200 Ω, a coil with reactance 200 Ω and a capacitor with reactance 300 Ω are connected in series.What is the value of the impedance?A. 200 + j100. C. 200 - j200.B. 200 - j200. D. 200 - j100arrow_forward
- Q = 2000 VAR, pf = 0.9 (leading). The power in complex form isarrow_forwardDet. a, i(t) d. plot the response curve of the current and voltages with respect on time.arrow_forwardQ.2/ For the R-L-C circuit shown in figure below, the total current is 0.707 A. Calculate the voltage of the capacitor, the voltage across each element with its angle and the power factor of the circuit. 100 1H c 0.707 A @ 100 V. 79.6 Hzarrow_forward
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