Modified Mastering Physics With Pearson Etext -- Standalone Access Card -- For Physics For Scientists & Engineers With Modern Physics (5th Edition)
5th Edition
ISBN: 9780134402628
Author: Douglas C. Giancoli
Publisher: PEARSON
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Chapter 31, Problem 11Q
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Explain the effect when two wires of unequal length connect two loudspeakers to the output of a stereo amplifier.
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Help. 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?
An electronics hobbyist is building a radio set to receive the AM band, with frequencies from 520 kHz to 1700 kHz. The antenna, which also serves as the inductor in an LC circuit, has an inductance of 230 μH. She needs to add a variable capacitor whose capacitance she can adjust to tune the radio. What is the minimum capacitance the capacitor must have? The maximum value?
Chapter 31 Solutions
Modified Mastering Physics With Pearson Etext -- Standalone Access Card -- For Physics For Scientists & Engineers With Modern Physics (5th Edition)
Ch. 31 - An electric field E points away from you, and its...Ch. 31 - Prob. 2QCh. 31 - Prob. 3QCh. 31 - The electric field in an EM wave traveling north...Ch. 31 - Is sound an electromagnetic wave? If not, what...Ch. 31 - Can EM waves travel through a perfect vacuum? Can...Ch. 31 - When you flip a light switch, does the overhead...Ch. 31 - Are the wavelengths of radio and television...Ch. 31 - What does the wavelength calculated in Example...Ch. 31 - Prob. 11Q
Ch. 31 - In the electromagnetic spectrum, what type of EM...Ch. 31 - Can radio waves have the same frequencies as sound...Ch. 31 - Discuss how cordless telephones make use of EM...Ch. 31 - Electromagnetic waves and sound waves can have the...Ch. 31 - What is the minimum angular speed at which...Ch. 31 - Prob. 37PCh. 31 - What size should the solar panel on a satellite...Ch. 31 - What is the range of wavelengths for (a) FM radio...Ch. 31 - Prob. 52GPCh. 31 - Prob. 54GPCh. 31 - Prob. 79GP
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