Physics for Scientists and Engineers, Volume 1, Chapters 1-22
8th Edition
ISBN: 9781439048382
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 33, Problem 33.9OQ
(a) Why does a capacitor act as a short circuit at high frequencies? (b) Why does a capacitor act as an open circuit at low frequencies?
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Chapter 33 Solutions
Physics for Scientists and Engineers, Volume 1, Chapters 1-22
Ch. 33 - Consider the voltage phasor in Figure 32.4, shown...Ch. 33 - Consider the AC circuit in Figure 32.8. The...Ch. 33 - Consider the AC circuit in Figure 32.11. The...Ch. 33 - Consider the AC circuit in Figure 32.12. The...Ch. 33 - Label each part of Figure 32.16, (a), (b), and...Ch. 33 - An AC source drives an RLC circuit with a fixed...Ch. 33 - What is the impedance of a series RLC circuit at...Ch. 33 - An inductor and a resistor are connected in series...Ch. 33 - (i) When a particular inductor is connected to a...Ch. 33 - A capacitor and a resistor are connected in series...
Ch. 33 - Prob. 33.4OQCh. 33 - Prob. 33.5OQCh. 33 - A sinusoidally varying potential difference has...Ch. 33 - A series RLCcircuit contains a 20.0- resistor, a...Ch. 33 - A resistor, a capacitor, and an inductor are...Ch. 33 - (a) Why does a capacitor act as a short circuit at...Ch. 33 - What is the plia.se angle in a series RLC circuit...Ch. 33 - Prob. 33.11OQCh. 33 - A 6.00-V battery is connected across the primary...Ch. 33 - Do AC ammeters and voltmeters read (a)...Ch. 33 - (a) Explain how the quality factor is related to...Ch. 33 - (a) Explain how the mnemonic ELI the ICE man can...Ch. 33 - Why is the sum of the maximum voltages across each...Ch. 33 - (a) Does the phase angle in an RLC series circuit...Ch. 33 - Prob. 33.5CQCh. 33 - As shown in Figure CQ33.6, a person pulls a vacuum...Ch. 33 - Prob. 33.7CQCh. 33 - Will a transformer operate if a battery is used...Ch. 33 - Prob. 33.9CQCh. 33 - Prob. 33.10CQCh. 33 - When an AC source is connected across a 12.0-...Ch. 33 - (a) What is the resistance of a lightbulb that...Ch. 33 - An AC power supply produces a maximum voltage Vmax...Ch. 33 - A certain lightbulb is rated at 60.0 W when...Ch. 33 - The current in the circuit shown in Figure P32.3...Ch. 33 - In the AC circuit shown in Figure P32.3, R = 70.0 ...Ch. 33 - An audio amplifier, represented by the AC I source...Ch. 33 - Figure P32.4 shows three lightbulbs connected to a...Ch. 33 - An inductor has a .54.0- reactance when connected...Ch. 33 - In a purely inductive AC circuit as shown in...Ch. 33 - Prob. 33.11PCh. 33 - An inductor is connected to an AC power supply...Ch. 33 - An AC source has an output rms voltage of 78.0 V...Ch. 33 - A 20.0-mH inductor is connected to a North...Ch. 33 - Review. Determine the maximum magnetic flux...Ch. 33 - The output voltage of an AC source is given by v =...Ch. 33 - A 1.00-mF capacitor is connected to a North...Ch. 33 - An AC source with an output rms voltage of 86.0 V...Ch. 33 - (a) For what frequencies does a 22.0-F capacitor...Ch. 33 - A source delivers an AC voltage of the form =...Ch. 33 - What maximum current is delivered by an AC source...Ch. 33 - A capacitor C is connected to a power supply that...Ch. 33 - What is the maximum current in a 2.20-F capacitor...Ch. 33 - An AC source with Vmax = 150 V and f = 50.0 Hz is...Ch. 33 - In addition to phasor diagrams showing voltages...Ch. 33 - A sinusoidal voltage = 40.0 sin 100t, where is...Ch. 33 - A series AC circuit contains a resistor, an...Ch. 33 - At what frequency does the inductive reactance of...Ch. 33 - An RLC circuit consists of a 150- resistor, a...Ch. 33 - Prob. 33.30PCh. 33 - An inductor (L = 400 mH), a capacitor (C = 4.43...Ch. 33 - A 60.0-ft resistor is connected in series with a...Ch. 33 - Review. In an RLC series circuit that includes a...Ch. 33 - Prob. 33.34PCh. 33 - A series RLC circuit has a resistance of 45.0 and...Ch. 33 - An AC voltage of the form = 100 sin 1 000t, where...Ch. 33 - A series RLC circuit has a resistance of 22.0 and...Ch. 33 - An AC voltage of the form v = 90.0 sin 350t, where...Ch. 33 - ln a certain series RLC circuit, Irms = 9.00 A,...Ch. 33 - Prob. 33.40PCh. 33 - Prob. 33.41PCh. 33 - A series RLC circuit has components with the...Ch. 33 - An RLC circuit is used in a radio to tune into an...Ch. 33 - The LC circuit of a radar transmitter oscillates...Ch. 33 - A 10.0- resistor, 10.0-mH inductor, and 100-F...Ch. 33 - A resistor R, inductor L, and capacitor C are...Ch. 33 - Review. A radar transmitter contains an LC circuit...Ch. 33 - A step-down transformer is used for recharging the...Ch. 33 - The primary coil of a transformer has N1 = 350...Ch. 33 - A transmission line that has a resistance per unit...Ch. 33 - In the transformer shown in Figure P33.51, the...Ch. 33 - A person is working near the secondary of a...Ch. 33 - The RC high-pass filter shown in Figure P33.53 has...Ch. 33 - Consider the RC high-pass filler circuit shown in...Ch. 33 - Prob. 33.55PCh. 33 - Consider the Filter circuit shown in Figure...Ch. 33 - A step-up transformer is designed to have an...Ch. 33 - Prob. 33.58APCh. 33 - Review. The voltage phasor diagram for a certain...Ch. 33 - Prob. 33.60APCh. 33 - Energy is to be transmitted over a pair of copper...Ch. 33 - Energy is to be transmitted over a pair of copper...Ch. 33 - A 400- resistor, an inductor, and a capacitor are...Ch. 33 - Show that the rms value for the sawtooth voltage...Ch. 33 - A transformer may be used to provide maximum power...Ch. 33 - A capacitor, a coil, and two resistors of equal...Ch. 33 - Marie Cornu, a physicist at the Polytechnic...Ch. 33 - A series RLC circuit has resonance angular...Ch. 33 - Review. One insulated conductor from a household...Ch. 33 - (a) Sketch a graph of the phase angle for an RLC...Ch. 33 - In Figure P33.71, find the rms current delivered...Ch. 33 - Review. In the circuit shown in Figure P32.44,...Ch. 33 - Prob. 33.73APCh. 33 - A series RLC circuit is operating at 2.00 103 Hz....Ch. 33 - A series RLC circuit consists of an 8.00-...Ch. 33 - A series RLC circuit in which R = l.00 , L = 1.00...Ch. 33 - The resistor in Figure P32.49 represents the...Ch. 33 - An 80.0- resistor and a 200-mH inductor are...Ch. 33 - Prob. 33.79CPCh. 33 - P33.80a shows a parallel RLC circuit. The...Ch. 33 - Prob. 33.81CP
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- What is the impedance of a series combination of a 50resistor, a 5.0F capacitor, and a 10F capacitor at a frequency of 2.0 kHz?arrow_forwardDo Kirchhoff’s rules apply to circuits that contain inductors and Capacitors?arrow_forwardCalculate the reactance of a 5.0F capacitor at (a) 60 Hz, (b) 600 Hz, and (c) 6000 Hz.arrow_forward
- Suppose you connect a small lightbulb across a DC power supply that has an emf of 5.0 V. You then connect the bulb across a 60.0-Hz AC power supply that has an rms voltage of 5.0 V. Does the bulb dissipate more power on average when it is connected to the DC power supply or the AC power supply? Is the bulb brighter when it is connected to the DC power supply or the AC power supply? Explain.arrow_forwardCalculate the rms currents for an ac source is given by v(t)=v0sint , where V0=100V and =200rad/s when connected across (a) a 20F capacitor, (b) a 20-mH inductor, and (c) a 50 resistor.arrow_forwardExplain why at high frequencies a capacitor acts as an ac short, whereas an inductor acts as an open circuit.arrow_forward
- Find the reactances of the following capacitors and inductors in ac circuits with the given frequencies in each case: (a) 2-mH inductor with a frequency 60-Hz of the ac circuit; (b) 2-mM Inductor with a frequency 600-Hz of the ac circuit; (C) 20-mM inductor with a frequency 6-Hz of the ac circuit; (d) 20-mM inductor with a frequency 60-Hz of the ac circuit; (e) 2-mF capacitor with a frequency 60-Hz of the ac circuit; and (f) 2-mF capacitor with a frequency 600-Hz of the AC circuit.arrow_forwardReview. The voltage phasor diagram for a certain series RLC circuit is shown in Figure P33.59. The resistance of the circuit is 75.0 , and the frequency is 60.0 Hz. Find (a) the maximum voltage Vmax, (b) the phase angle , (c) the maximum current, (d) the impedance, (e) the capacitance and (f) the inductance of the circuit, and (g) the average power delivered to the circuit.arrow_forwardAn ac source of voltage amplitude 10 V delivers electric energy at a rate of 0.80 W when its current output is 2.5 A. What is the phase angle between the emf and the current?arrow_forward
- In Figure P33.71, find the rms current delivered by the 45.0-V (rms) power supply when (a) the frequency is very large and (b) the frequency is very small.arrow_forwardA circuit contains a light bulb and a capacitor (RC circuit) in series connected to an AC power supply. How should you choose the AC frequency such that the light glow the brightest? Why?arrow_forward(a) For what frequencies does a 27.0-μF capacitor have a reactance below 200 ? f ---Select--- ✓ Hz (What hat is the reactance of a 30.0-μF capacitor over this same frequency range? X✔ ---Select--- Ω ead Itarrow_forward
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