 21.21.1: A sinusoidally varying voltage has a maximum value of 170 V. What i...
 21.21.2: When a particular inductor is connected to a source of sinusoidally...
 21.21.3: What is the rms voltage across a capacitor with capacitance (1.00/2...
 21.21.4: Find the voltage across a (1.0/2p)H inductor when it carries 2.0 A...
 21.21.5: A series RLC circuit contains a resistor of 20 _, a capacitor of 0....
 21.21.6: A 6.0V battery is connected across the primary coil of a transform...
 21.21.7: An electromagnetic wave with a peak magnetic fi eld component of ma...
 21.21.8: An inductor and a resistor are connected in series across an AC gen...
 21.21.9: A capacitor and a resistor are connected in series across an AC gen...
 21.21.10: A resistor, capacitor, and inductor are connected in series across ...
 21.21.11: A resistor, capacitor, and inductor are connected in series across ...
 21.21.12: If the voltage across a circuit element has its maximum value when ...
 21.21.13: What is the phase angle in a series RLC circuit at resonance? (a) 1...
 21.21.14: A series RLC circuit contains a 20.0_ resistor, a 0.75mF capacito...
 21.21.15: Before the advent of cable television and satellite dishes, homeown...
 21.21.16: What is the impedance of an RLC circuit at the resonance frequency?
 21.21.17: Receiving radio antennas can be in the form of conducting lines or ...
 21.21.18: If the fundamental source of a sound wave is a vibrating object, wh...
 21.21.19: In radio transmission a radio wave serves as a carrier wave, and th...
 21.21.20: When light (or other electromagnetic radiation) travels across a gi...
 21.21.21: In space sailing, which is a proposed alternative for transport to ...
 21.21.22: How can the average value of an alternating current be zero, yet th...
 21.21.23: Suppose a creature from another planet had eyes that were sensitive...
 21.21.24: Why should an infrared photograph of a person look different from a...
 21.21.25: Does a wire connected to a battery emit an electromagnetic wave?
 21.21.26: If a highfrequency current is passed through a solenoid containing...
 21.21.27: If the resistance in an RLC circuit remains the same, but the capac...
 21.21.28: Why is the sum of the maximum voltages across each of the elements ...
 21.21.29: What is the advantage of transmitting power at high voltages?
 21.21.30: When an AC generator is connected across a 12.0_ resistor, the rms...
 21.21.31: A certain lightbulb is rated at 60.0 W when operating at an rms vol...
 21.21.32: An AC power supply that produces a maximum voltage of _Vmax _ 100 V...
 21.21.33: Figure P21.4 shows three lamps connected to a 120V AC (rms) househ...
 21.21.34: An audio amplifi er, represented by the AC source and the resistor ...
 21.21.35: The output voltage of an AC generator is given by _v _ (170 V) sin ...
 21.21.36: Show that the SI unit of capacitive reactance Xc is the ohm.
 21.21.37: What is the maximum current delivered to a circuit containing a 2.2...
 21.21.38: When a 4.0mF capacitor is connected to a generator whose rms outpu...
 21.21.39: An AC generator with an output rms voltage of 36.0 V at a frequency...
 21.21.40: What must be the capacitance of a capacitor inserted in a 60Hz cir...
 21.21.41: A generator delivers an AC voltage of the form _v _ (98.0 V) sin (8...
 21.21.42: Show that the inductive reactance XL has SI units of ohms.
 21.21.43: An AC generator has an output rms voltage of 78.0 V at a frequency ...
 21.21.44: An inductor is connected to an AC power supply having a maximum out...
 21.21.45: The output voltage of an AC generator is given by _v _ (1.20 _ 102 ...
 21.21.46: Determine the maximum magnetic fl ux through an inductor connected ...
 21.21.47: A sinusoidal voltage _v _ (80.0 V) sin (150t) is applied to a serie...
 21.21.48: A 40.0mF capacitor is connected to a 50.0_ resistor and a generat...
 21.21.49: An inductor (L _ 400 mH), a capacitor (C _ 4.43 mF), and a resistor...
 21.21.50: A resistor (R _ 9.00 _ 102 _), a capacitor (C _ 0.250 mF), and an i...
 21.21.51: A 50.0_ resistor, a 0.100H inductor, and a 10.0mF capacitor are ...
 21.21.52: A 60.0_ resistor, a 3.00mF capacitor, and a 0.400H inductor are ...
 21.21.53: An AC source operating at 60 Hz with a maximum voltage of 170 V is ...
 21.21.54: A person is working near the secondary of a transformer, as shown i...
 21.21.55: A series RLC circuit contains the following components: R _ 1.50 _ ...
 21.21.56: Consider the RLC circuit in 21.27. When the voltage across the resi...
 21.21.57: An AC source with a maximum voltage of 150 V and f _ 50.0 Hz is con...
 21.21.58: A 60.0_ resistor is connected in series with a 30.0mF capacitor a...
 21.21.59: An AC source operating at 60 Hz with a maximum voltage of 170 V is ...
 21.21.60: A multimeter in an RL circuit records an rms current of 0.500 A and...
 21.21.61: An AC voltage of the form _v _ (90.0 V) sin (350t) is applied to a ...
 21.21.62: Calculate the average power delivered to the circuit described in 21.
 21.21.63: A series RLC circuit has a resistance of 22.0 _ and an impedance of...
 21.21.64: An inductor and a resistor are connected in series. When connected ...
 21.21.65: Consider a series RLC circuit with R _ 25 _, L _ 6.0 mH, and C _ 25...
 21.21.66: A resonant circuit in a radio receiver is tuned to a certain statio...
 21.21.67: The LC circuit of a radar transmitter oscillates at 9.00 GHz. (a) W...
 21.21.68: The AM band extends from approximately 500 kHz to 1 600 kHz. If a 2...
 21.21.69: Consider a series RLC circuit with R _ 15 _, L _ 200 mH, C _ 75 mF,...
 21.21.70: A 10.0_ resistor, a 10.0mH inductor, and a 100mF capacitor are c...
 21.21.71: A series circuit contains a 3.00H inductor, a 3.00mF capacitor, a...
 21.21.72: The primary coil of a transformer has N1 _ 250 turns, and its secon...
 21.21.73: A stepdown transformer is used for recharging the batteries of por...
 21.21.74: An AC power generator produces 50 A (rms) at 3 600 V. The voltage i...
 21.21.75: A transformer is to be used to provide power for a computer disk dr...
 21.21.76: A transformer on a pole near a factory steps the voltage down from ...
 21.21.77: A transmission line that has a resistance per unit length of 4.50 _...
 21.21.78: The U.S. Navy has long proposed the construction of extremely low f...
 21.21.79: (a) The distance to Polaris, the North Star, is approximately 6.44 ...
 21.21.80: An electromagnetic wave in free space has an electric fi eld of amp...
 21.21.81: Experimenters at the National Institute of Standards and Technology...
 21.21.82: Oxygenated hemoglobin absorbs weakly in the red (hence its red colo...
 21.21.83: Operation of the pulse oximeter (see previous problem). The transmi...
 21.21.84: The Sun delivers an average power of 1 340 W/m2 to the top of Earth...
 21.21.85: A laser beam is used to levitate a metal disk against the force of ...
 21.21.86: A microwave oven is powered by an electron tube called a magnetron ...
 21.21.87: Assume the solar radiation incident on Earth is 1 340 W/m2 (at the ...
 21.21.88: The eye is most sensitive to light of wavelength 5.50 _ 107 m, whic...
 21.21.89: A diathermy machine, used in physiotherapy, generates electromagnet...
 21.21.90: What are the wavelength ranges in (a) the AM radio band (5401 600 k...
 21.21.91: An important news announcement is transmitted by radio waves to peo...
 21.21.92: Infrared spectra are used by chemists to help identify an unknown s...
 21.21.93: A spaceship is approaching a space station at a speed of 1.8 _ 105 ...
 21.21.94: While driving at a constant speed of 80 km/h, you are passed by a c...
 21.21.95: A speeder tries to explain to the police that the yellow warning li...
 21.21.96: A 50.0_ resistor is connected in series with a 15.0mF capacitor a...
 21.21.97: The intensity of solar radiation at the top of Earths atmosphere is...
 21.21.98: A 200_ resistor is connected in series with a 5.0mF capacitor and...
 21.21.99: A series RLC circuit has a resonance frequency of 2 000/p Hz. When ...
 21.21.100: As a way of determining the inductance of a coil used in a research...
 21.21.101: (a) What capacitance will resonate with a oneturn loop of inductan...
 21.21.102: A dish antenna with a diameter of 20.0 m receives (at normal incide...
 21.21.103: A particular inductor has appreciable resistance. When the inductor...
 21.21.104: One possible means of achieving space fl ight is to place a perfect...
 21.21.105: The U.S. Food and Drug Administration limits the radiation leakage ...
Solutions for Chapter 21: Multiple Choice Questions
Full solutions for College Physics,  8th Edition
ISBN: 9780495386933
Solutions for Chapter 21: Multiple Choice Questions
Get Full SolutionsSince 105 problems in chapter 21: Multiple Choice Questions have been answered, more than 55567 students have viewed full stepbystep solutions from this chapter. This expansive textbook survival guide covers the following chapters and their solutions. College Physics, was written by and is associated to the ISBN: 9780495386933. Chapter 21: Multiple Choice Questions includes 105 full stepbystep solutions. This textbook survival guide was created for the textbook: College Physics,, edition: 8.

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parallel

any symbol
average (indicated by a bar over a symbol—e.g., v¯ is average velocity)

°C
Celsius degree

°F
Fahrenheit degree