Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN: 9781337553292
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 32.4, Problem 32.4QQ
Consider the AC circuit in Figure 32.12. The frequency of the AC source is adjusted while its voltage amplitude is held constant. When does the lightbulb glow the brightest? (a) It glows brightest at high frequencies. (b) It glows brightest at low frequencies. (c) The brightness is the same at all frequencies.
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power rating of 150 W, and bulb 3 has a 100-W rating. Find
(a) the rms current in each bulb and (b) the resistance of
each bulb. (c) What is the total resistance of the combina-
tion of the three lightbulbs?
max
R
5. In the AC circuit shown in Figure P32.3, R = 70.0 and the
output voltage of the AC source is AV sin wt. (a) If AV₂ =
0.250 AV for the first time at t = 0.010 0 s, what is the
angular frequency of the source? (b) What is the next value
of t for which AVR = 0.250 AVmax?
max
SECTION 32.3 Inductors in an AC Circuit
6. In a purely inductive AC circuit as shown in Figure P32.6,
100 V. (a) The maximum current is 7.50 A at
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50.0 Hz. Calculate the inductance L. (b)
At
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0.622 sin (wt -=).a) At what time does the generator reach maximum
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element is that a capacitor inductor or resistor, explain d) Find the value of that element( Ans:
a)6.7 ms b0 11.2 ms c) Inductor d) 144 mH
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1. An inductor and a resistor are connected in series across an AC source as in Figure Q38.1. Immediately after the switch is closed, which of the following state ments is true? a) The current in the circuit is AVR. (b) The voltage across the inductor is zero. (c) The cur rent in the circuit is zero. (d) The voltage across the resistor is AV. (e) The voltage across the inductor is half its maximum value.
Chapter 32 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 32.2 - Consider the voltage phasor in Figure 32.4, shown...Ch. 32.3 - Consider the AC circuit in Figure 32.8. The...Ch. 32.4 - Consider the AC circuit in Figure 32.11. The...Ch. 32.4 - Consider the AC circuit in Figure 32.12. The...Ch. 32.5 - Label each part of Figure 32.16, (a), (b), and...Ch. 32.6 - Prob. 32.6QQCh. 32.7 - Prob. 32.7QQCh. 32 - (a) What is the resistance of a lightbulb that...Ch. 32 - A certain lightbulb is rated at 60.0 W when...Ch. 32 - The current in the circuit shown in Figure P32.3...
Ch. 32 - Figure P32.4 shows three lightbulbs connected to a...Ch. 32 - Prob. 5PCh. 32 - Prob. 6PCh. 32 - Prob. 7PCh. 32 - Prob. 8PCh. 32 - An AC source has an output rms voltage of 78.0 V...Ch. 32 - Prob. 10PCh. 32 - Prob. 11PCh. 32 - An AC source with an output rms voltage of 86.0 V...Ch. 32 - What is the maximum current in a 2.20-F capacitor...Ch. 32 - Prob. 14PCh. 32 - In addition to phasor diagrams showing voltages...Ch. 32 - An AC source with Vmax = 150 V and f = 50.0 Hz is...Ch. 32 - You are working in a factory and have been tasked...Ch. 32 - Prob. 18PCh. 32 - Prob. 19PCh. 32 - A 60.0-ft resistor is connected in series with a...Ch. 32 - A series RLC circuit has a resistance of 45.0 and...Ch. 32 - Prob. 22PCh. 32 - Prob. 23PCh. 32 - An AC voltage of the form v = 90.0 sin 350t, where...Ch. 32 - Prob. 25PCh. 32 - A series RLC circuit has components with the...Ch. 32 - You wish to build a series RLC circuit for a...Ch. 32 - A 10.0- resistor, 10.0-mH inductor, and 100-F...Ch. 32 - Prob. 29PCh. 32 - The primary coil of a transformer has N1 = 350...Ch. 32 - Prob. 31PCh. 32 - A transmission line that has a resistance per unit...Ch. 32 - Prob. 33APCh. 32 - Prob. 34APCh. 32 - Prob. 35APCh. 32 - Prob. 36APCh. 32 - Prob. 37APCh. 32 - Prob. 38APCh. 32 - Prob. 39APCh. 32 - Prob. 40APCh. 32 - Prob. 41APCh. 32 - (a) Sketch a graph of the phase angle for an RLC...Ch. 32 - A series RLC circuit contains the following...Ch. 32 - Review. In the circuit shown in Figure P32.44,...Ch. 32 - You have decided to build your own speaker system...Ch. 32 - Prob. 46APCh. 32 - Prob. 47APCh. 32 - A series RLC circuit in which R = l.00 , L = 1.00...Ch. 32 - The resistor in Figure P32.49 represents the...Ch. 32 - Prob. 50CPCh. 32 - Prob. 51CP
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- An inductor and a resistor are connected in series across an AC source as in Figure OQ33.1. Immediately after the switch is closed, which of the following statements is true? (a) The current in the circuit is V/R. (b) The voltage across the inductor is zero, (c) The current in the circuit is zero, (d) The voltage across the resistor is V (e) The voltage across the inductor is half its maximum value.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_forwardConsider the Filter circuit shown in Figure P33.56. (a) Show that the ratio of the amplitude of the output voltage to that of the input voltage is to that of input voltage is VoutVin=1/CR2+(1C)2 (b) What value does this ratio approach as the frequency decreases toward zero? (c) What value does this ratio approach as the frequency increases without limit? (d) At what frequency is the ratio equal to one-half?arrow_forward
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- ook aring /session.masteringphysics.com/myct/temview?assignment ProblemiD=195605... 2 Fon Q A A radio can be tuned into a particular station frequency by adjusting the capacitance in an L-C circuit. Suppose that the minimum capacitance of a variable capacitor in a radio is 4.13 pF Z C 2 W S x H command Mak 201 2 3 E D 13.0 с 4 R F 96 5 V T I FS G ▼ Part A 6 What is the inductance L of a coil connected to this capacitor if the oscillation frequency of the L-C circuit is 1.69 MHz corresponding to one end of the AM radio broadcast band, when the capacitor is set to its minimum capacitance? Express your answer in henrys to three significant figures. ▸ View Available Hint(s) B L= Submit Part B Cax Provide Feedback Submit 15] ΑΣΦΑ The frequency at the other end of the broadcast band is 0.533 MHz. What is the maximum capacitance Cax of the capacitor if the oscillation frequency is adjustable over the range of the broadcast band? Express your answer in farads to three significant figures. View…arrow_forward4. Figure A shows the AC voltage produced by a particular source. Estimate (a) the frequency of this voltage, (b) the amplitude of this voltage, and (c) the rms value of this voltage. (d) If this AC voltage were attached to a lightbulb, would you notice the flicker of the bulb? V(V) 4 3. 2 M t (ms) Figure Aarrow_forwardHelp. You decide to use a toaster to toast a slice of bread using the wall outlet of your home. Knowing that the voltage supply of your home is alternating given by the function V = 120 sin (2 πft), where f = 120 Hz and t is time in seconds: 1. If the toaster oven uses nichrome wire that measures a total length of 0. 25 m with a thickness of 0.5 mm (diameter of wire), what is the resistance of the wire when heats up to 100.0 C from room temperature of 20. 0 °C? 2. Knowing the resistance value of the wire from part a) and using Ohms Law, write the alternating current equation. 3. What is the rms value for current and voltage for our toaster oven circuit? 4. How much average electrical energy J does the toaster oven use if you toast your bread for 1 minute?arrow_forward
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