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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Question
Chapter 31.4, Problem 31.4QQ
To determine
The effect on the mutual inductance of the two coils.
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Here you see a single loop of stiff wire, 10.0 cm on a side, immersed in a magnetic field of 0.225 T. Suppose that you remove the loop from the field in just 0.00208 sec. What emf or voltage will be induced in the loop? Express your answer to three significant figures and in normal notation.
A conducting rod is pulled horizontally with constant force F = 5.00 N along a set of rails separated by d = 0.56 m. A uniform magnetic field B= 0.60 T is directed into the page. There is no friction between the rod and the rails, and the rod moves with constant velocity v = 4.00 m/s. Using Faraday's Law, calculate the magnitude of the induced emf (in V) around the loop in the figure that is caused by the changing flux.
Consider a 12-loop coil with a diameter of 8 cm; a north-leading bar magnet moves further away from the coil (where the bar magnet is perpendicular to the cross section of the coil, and the north pole is closest to the coil as the magnet moves away). The magnetic field value changes from 0.065 T to 0.00065 T in 1.6 s.
What is the induced emf for the coil?
emf =
V
Chapter 31 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 31.1 - A coil with zero resistance has its ends labeled a...Ch. 31.2 - Prob. 31.2QQCh. 31.3 - Prob. 31.3QQCh. 31.4 - Prob. 31.4QQCh. 31.5 - (i) At an instant of time during the oscillations...Ch. 31 - Prob. 1PCh. 31 - Prob. 2PCh. 31 - Prob. 3PCh. 31 - Prob. 4PCh. 31 - Prob. 5P
Ch. 31 - A toroid has a major radius R and a minor radius r...Ch. 31 - Prob. 7PCh. 31 - Prob. 8PCh. 31 - Prob. 9PCh. 31 - Prob. 10PCh. 31 - Prob. 11PCh. 31 - Prob. 12PCh. 31 - Prob. 13PCh. 31 - You are working as a demonstration assistant for a...Ch. 31 - Prob. 15PCh. 31 - Prob. 16PCh. 31 - Prob. 17PCh. 31 - Prob. 18PCh. 31 - Prob. 19PCh. 31 - Prob. 20PCh. 31 - Prob. 21PCh. 31 - Prob. 22PCh. 31 - Prob. 23PCh. 31 - Prob. 24PCh. 31 - Prob. 25PCh. 31 - Prob. 26PCh. 31 - Prob. 27PCh. 31 - Prob. 28PCh. 31 - In the circuit of Figure P31.29, the battery emf...Ch. 31 - Prob. 30PCh. 31 - Prob. 31PCh. 31 - Prob. 32PCh. 31 - In Figure 31.15, let R = 7.60 , L = 2.20 mH, and C...Ch. 31 - Prob. 34PCh. 31 - Electrical oscillations are initiated in a series...Ch. 31 - Prob. 36APCh. 31 - A capacitor in a series LC circuit has an initial...Ch. 31 - Prob. 38APCh. 31 - Prob. 39APCh. 31 - At the moment t = 0, a 24.0-V battery is connected...Ch. 31 - Prob. 41APCh. 31 - Prob. 42APCh. 31 - Prob. 43APCh. 31 - Prob. 44APCh. 31 - Prob. 45APCh. 31 - At t = 0, the open switch in Figure P31.46 is...Ch. 31 - Prob. 47APCh. 31 - Prob. 48APCh. 31 - Prob. 49APCh. 31 - Prob. 50CPCh. 31 - Prob. 51CPCh. 31 - Prob. 52CPCh. 31 - Prob. 53CP
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- At the instant a current of 0.20 A is flowing through a coil of wire, the energy stored in its magnetic field is 6.0 × 10-3 J. What is the self-inductance of the coil?arrow_forwardIn Figure P20.65 the rolling axle of length 1.50 m is pushed along horizontal rails at a constant speed v = 3.00 m/s. A resist or R = 0.400 is connected to the rails at points a and b, directly opposite each other. (The wheels make good electrical contact with the rails, so the axle, rails, and R form a closed-loop circuit. The only significant resistance in the circuit is R.) A uniform magnetic field B = 0.800 T is directed vertically downward. (a) Find the induced current I in the resistor. (b) What horizontal force F is required to keep the axle rolling at constant speed? (c) Which end of the resistor, a or b. is at the higher electric potential? (d) Alter the axle rolls past the resistor, does the current in R reverse direction? Explain your answer. Figure P20.65arrow_forwardA square coil, enclosing an area with sides 8.32 cm long, is wrapped with 5666 turns of wire. A uniform magnetic field perpendicular to its plane is turned on and increases to 0.865 T during an interval of 6.62 s. What average voltage is induced in the coil?arrow_forward
- A conducting rod is pulled horizontally with constant force F= 3.90 N along a set of rails separated by d= 0.440 m. A uniform magnetic field B= 0.500 T is directed into the page. There is no friction between the rod and the rails, and the rod moves with constant velocity v= 4.80 m/s. Using Faraday's Law, calculate the induced emf around the loop in the figure that is caused by the changing flux. Assign clockwise to be the positive direction for emf.arrow_forwardWhat is the magnitude of the rate at which the current though a 0.30-H coil is changing if an emf of 0.12 V is induced across the coil? 0.025 A/s 0.4 A/s 0.036 A/s 0 A/sarrow_forwardA coil formed by wrapping 60 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 26.0° with the direction of the field. When the magnetic field is increased uniformly from 200 µT to 600 µT in 0.400 s, an emf of magnitude 80.0 mV is induced in the coil. What is the total length of the wire? Note: See image for the original question.arrow_forward
- A fixed 13.3-cmcm-diameter wire coil is perpendicular to a magnetic field 0.59 TT pointing up. In 0.19 ss , the field is changed to 0.27 TT pointing down. What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. E= ?arrow_forwardA 52-turn coil with an area of (5.5*10^-3)(m^2) is dropped from a position where B = 0.00 T to a new position where B = 0.55 T. If the displacement occurs in 0.25 s and the area of the coil is perpendicular to the magnetic field lines, what is the resulting average emf induced in the coil?arrow_forwardThe space to the right of the y axis in (Figure 1) contains a uniform magnetic field of unknown magnitude that points in the positive z direction. As a conducting square loop placed in the xy plane (oriented with its horizontal and vertical sides parallel to the xx and yy axes) moves to the right across the y axis at a constant speed of 2.0 m/s, a 0.42-V emf is induced in the loop. If the side length of the loop is 0.30 mm, what is the magnitude of the magnetic field? B=?arrow_forward
- A square coil of side 4 cm and 200 windings initially lies perpendicular to a magnetic field of 4.0T (?̂ //?⃗ ). The coil is rotated through an angle θ of 75 degrees in 0.2 seconds. Calculate the average emf induced in the coil while it is being rotatedarrow_forwardA coil with a wire that is wrapped 40 turns around a 0.5 m2 hollow tube. A uniform magnetic field is applied perpendicular to the plane of the coil. The field changes uniformly from 0.00 T to 0.95 T in 2.0 s. If the resistance in the coil is 3.0 Ω, what is the induced emf in the coil? Group of answer choices -3 V 0 V -1 V -10 V -9.5 Varrow_forwardA circular coil of 50 turns and radius 8.0cm is placed with its plane oriented at 90 degrees to a magnetic field of .20 T. the field is now increased at a steady rate, reaching a value of .80T after 3.0 seconds. What emf is induced in the coil? a. 40V b. 0V c. 0.20V d. 0.0040V e. 2010Varrow_forward
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