Physics for Scientists and Engineers with Modern Physics, Technology Update
9th Edition
ISBN: 9781305401969
Author: SERWAY, Raymond A.; Jewett, John W.
Publisher: Cengage Learning
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Textbook Question
Chapter 31.3, Problem 31.3QQ
Figure 30.12 (Quick Quiz 30.3)
QUICK QUIZ 30.3 Figure 30.12 shows a circular loop of wire falling toward a wire carrying a current to the left. What is the direction of the induced current in the loop of wire? (a) clockwise (b) counterclockwise (c) zero (d) impossible to determine
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Given:
I1 = 6 A
I2 = 4 A
Wire 1 at (0, 4.5) mm
Wire 2 at (6, 0) mm
Point P at (6, 4.5) mm
Questions:
1. Magnitude of magnetic field at point P in teslas?
2. Direction of magnetic field vector as measured in degrees counterclockwise from the +x axis?
3. A wire is moving on frictionless rails in a uniform magnetic field,
as shown to the right. The wire is part of a complete circuit with a
resistance R.
a. If the magnetic field is 0.05 T and the wire is 5 cm long, what
speed is necessary to produce an emf of 2 mV across the ends of
the wire?
b. If the resistance is 20 2, what is the current in the circuit?
3. a) Define the magnetic flux of a uniform magnetic field.
b) Figure 3.1 shows a narrow coil of 15 turns and diameter of 4.2 cm is placed perpendicular to a uniform magnetic field of 0.80 T. After 0.30 s, the diameter of the coil is increased to 5.5 cm
i. Calculate the change in the area of the coil.
ii. If the coil has a resistance of 2.2 Ω, determine the induced current in the coil.
Chapter 31 Solutions
Physics for Scientists and Engineers with Modern Physics, Technology Update
Ch. 31.1 - A circular loop of wire is held in a uniform...Ch. 31.2 - QUICK QUIZ 30.2 In Figure 30.8a, a given applied...Ch. 31.3 - Figure 30.12 (Quick Quiz 30.3) QUICK QUIZ 30.3...Ch. 31.5 - Prob. 31.4QQCh. 31.6 - Prob. 31.5QQCh. 31 - Prob. 1OQCh. 31 - Prob. 2OQCh. 31 - Prob. 3OQCh. 31 - Prob. 4OQCh. 31 - Prob. 5OQ
Ch. 31 - Prob. 6OQCh. 31 - Prob. 7OQCh. 31 - Prob. 8OQCh. 31 - Prob. 9OQCh. 31 - Prob. 10OQCh. 31 - Prob. 11OQCh. 31 - Prob. 1CQCh. 31 - Prob. 2CQCh. 31 - Prob. 3CQCh. 31 - Prob. 4CQCh. 31 - Prob. 5CQCh. 31 - Prob. 6CQCh. 31 - Prob. 7CQCh. 31 - Prob. 8CQCh. 31 - Prob. 9CQCh. 31 - Prob. 10CQCh. 31 - Prob. 1PCh. 31 - Prob. 2PCh. 31 - Prob. 3PCh. 31 - Prob. 4PCh. 31 - Prob. 5PCh. 31 - Prob. 6PCh. 31 - Prob. 7PCh. 31 - Prob. 8PCh. 31 - Prob. 9PCh. 31 - Scientific work is currently under way to...Ch. 31 - Prob. 11PCh. 31 - Prob. 12PCh. 31 - Prob. 13PCh. 31 - Prob. 14PCh. 31 - Prob. 15PCh. 31 - Prob. 16PCh. 31 - A coil formed by wrapping 50 turns of wire in the...Ch. 31 - Prob. 18PCh. 31 - Prob. 19PCh. 31 - Prob. 20PCh. 31 - Prob. 21PCh. 31 - Prob. 22PCh. 31 - Prob. 23PCh. 31 - A small airplane with a wingspan of 14.0 m is...Ch. 31 - A 2.00-m length of wire is held in an eastwest...Ch. 31 - Prob. 26PCh. 31 - Prob. 27PCh. 31 - Prob. 28PCh. 31 - Prob. 29PCh. 31 - Prob. 30PCh. 31 - Prob. 31PCh. 31 - Prob. 32PCh. 31 - Prob. 33PCh. 31 - Prob. 34PCh. 31 - Prob. 35PCh. 31 - Prob. 36PCh. 31 - Prob. 37PCh. 31 - Prob. 38PCh. 31 - Prob. 39PCh. 31 - Prob. 40PCh. 31 - Prob. 41PCh. 31 - Prob. 42PCh. 31 - Prob. 43PCh. 31 - Prob. 44PCh. 31 - Prob. 45PCh. 31 - Prob. 46PCh. 31 - Prob. 47PCh. 31 - Prob. 48PCh. 31 - The rotating loop in an AC generator is a square...Ch. 31 - Prob. 50PCh. 31 - Prob. 51APCh. 31 - Prob. 52APCh. 31 - Prob. 53APCh. 31 - Prob. 54APCh. 31 - Prob. 55APCh. 31 - Prob. 56APCh. 31 - Prob. 57APCh. 31 - Prob. 58APCh. 31 - Prob. 59APCh. 31 - Prob. 60APCh. 31 - Prob. 61APCh. 31 - Prob. 62APCh. 31 - Prob. 63APCh. 31 - Prob. 64APCh. 31 - Prob. 65APCh. 31 - Prob. 66APCh. 31 - Prob. 67APCh. 31 - A conducting rod moves with a constant velocity in...Ch. 31 - Prob. 69APCh. 31 - Prob. 70APCh. 31 - Prob. 71APCh. 31 - Prob. 72APCh. 31 - Prob. 73APCh. 31 - Prob. 74APCh. 31 - Prob. 75APCh. 31 - Prob. 76APCh. 31 - Prob. 77APCh. 31 - Prob. 78APCh. 31 - Prob. 79CPCh. 31 - Prob. 80CPCh. 31 - Prob. 81CPCh. 31 - Prob. 82CPCh. 31 - Prob. 83CP
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- Assume that the magnet has a magnetic moment of μ = 0.39 A. m². The magnet is moving toward the coil that has N = 309 turns and radius r = 9 cm. a. Find the change in magnetic field of the magnet when the magnet moves from 1 cm to 6 cm from the center of coil. AB [T] b. What is the induced emf if this change happens in 0.2 s? em f [V] c. What is the induced current if the resistance of the coil is R = 902? i [A] d. What is the magnitude of ENC? ENC [V/m] 0arrow_forwardSuppose a motorcycle increases the downward componentof the magnetic field within a loop only from 1.2 * 10-5T to1.9 * 10-5T. The detector is square, is 0.75 m on a side, and hasfour loops of wire. Over what period of time must the magneticfield increase if it is to induce an emf of 1.4 * 10-4V?A. 0.028 s B. 0.11 s C. 0.35 s D. 0.60 sarrow_forward1. A 1.50 V battery is connected in series with a capacitor and a 275Ω resistor. a. What is the charge and the voltage across the capacitor immediately after the switch is closed? b. At steady state, what will be the potential across the capacitor? 2. A loop of wire in the form of a square 1.50 m on each side, its plane makes an angle of 40.0° with a uniform magnetic field of 0.95 T. What is the magnetic flux through the loop?arrow_forward
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