Fundamentals of Physics Extended
10th Edition
ISBN: 9781118230725
Author: David Halliday, Robert Resnick, Jearl Walker
Publisher: Wiley, John & Sons, Incorporated
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 30, Problem 12Q
Figure 30-32 gives four situations in which we pull rectangular wire loops out of identical magnetic fields (directed into the page) at the same constant speed. The loops have edge lengths of either L or 2L, as drawn. Rank the situations according to (a) the magnitude of the force required of us and (b) the rate at which energy is transferred from us to thermal energy of the loop, greatest first.
Figure 30-32 Question 12.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
HRW TP31-15P A square wire loop with 2.99 m sides is perpendicular to a uniform magnetic field, with half the area of the loop in the field as shown in Fig. 31-38. The loop contains a 20.0 V battery with negligible internal resistance. If the magnitude of the field varies with time according to B = 0.4110 0.780t, with B in teslas and t in
seconds, what is the net emf in the circuit and the direction of the current though the battery?
V
counterclockwise
O clockwise
B
20.0 V
Figure 31-38
*.28 G0 In Fig. 30-51, a rectangular
loop of wire with length a = 2.2 cm, width b = 0.80 cm, and resist-
ance R = 0.40 mn is placed near an infinitely long wire carrying
current i = 4.7 A. The loop is then moved away from the wire at
constant speed v = 3.2 mm/s. When the center of the loop is at
distance r = 1.5b, what are (a) the magnitude of the magnetic flux
through the loop and (b) the current induced in the loop?
%3D
A conducting crossbar is in electrical contact with two vertical conducting wires and slides down those wires, pulled by gravity. The wires are connected with a 10 Ω resistor R to form a closed circuit as shown in the figure. The mass of the crossbar is 30 gm and its length ` between the vertical wires is 0.5 m. There is a horizontal magnetic field B = 1 Tesla perpendicular to the plane of the loop.
When the crossbar is moving at a constant speed, what is the voltage across the resistor?
Chapter 30 Solutions
Fundamentals of Physics Extended
Ch. 30 - If the circular conductor in Fig. 30-21 undergoes...Ch. 30 - Prob. 2QCh. 30 - Prob. 3QCh. 30 - Prob. 4QCh. 30 - Prob. 5QCh. 30 - Prob. 6QCh. 30 - Prob. 7QCh. 30 - Prob. 8QCh. 30 - Prob. 9QCh. 30 - Prob. 10Q
Ch. 30 - Figure 30-31 shows three situations in which a...Ch. 30 - Figure 30-32 gives four situations in which we...Ch. 30 - Prob. 1PCh. 30 - A certain elastic conducting material is stretched...Ch. 30 - Prob. 3PCh. 30 - A wire loop of radius 12 cm and resistance 8.5 is...Ch. 30 - Prob. 5PCh. 30 - Figure 30-37a shows a circuit consisting of an...Ch. 30 - In Fig. 30-38, the magnetic flux through the loop...Ch. 30 - Prob. 8PCh. 30 - Prob. 9PCh. 30 - Prob. 10PCh. 30 - A rectangular coil of N turns and of length a and...Ch. 30 - Prob. 12PCh. 30 - Prob. 13PCh. 30 - GO In Fig. 30-42a, a uniform magnetic field B...Ch. 30 - GO A square wire loop with 2.00 m sides is...Ch. 30 - GO Figure 30-44a shows a wire that forms a...Ch. 30 - A small circular loop of area 2.00 cm2 is placed...Ch. 30 - Prob. 18PCh. 30 - ILW An electric generator contains a coil of 100...Ch. 30 - At a certain place, Earths magnetic field has...Ch. 30 - Prob. 21PCh. 30 - A rectangular loop area = 0.15 m2 turns in a...Ch. 30 - SSM Figure 30-47 shows two parallel loops of wire...Ch. 30 - Prob. 24PCh. 30 - GO Two long, parallel copper wires of diameter 2.5...Ch. 30 - GO For the wire arrangement in Fig. 30-49, a =...Ch. 30 - ILW As seen in Fig. 30-50, a square loop of wire...Ch. 30 - Prob. 28PCh. 30 - Prob. 29PCh. 30 - Prob. 30PCh. 30 - Prob. 31PCh. 30 - A loop antenna of area 2.00 cm2 and resistance...Ch. 30 - GO Figure 30-54 shows a rod of length L = 10.0 cm...Ch. 30 - Prob. 34PCh. 30 - Prob. 35PCh. 30 - Prob. 36PCh. 30 - Prob. 37PCh. 30 - Prob. 38PCh. 30 - Prob. 39PCh. 30 - Prob. 40PCh. 30 - A circular coil has a 10.0 cm radius and consists...Ch. 30 - Prob. 42PCh. 30 - Prob. 43PCh. 30 - Prob. 44PCh. 30 - Prob. 45PCh. 30 - Prob. 46PCh. 30 - Inductors in series. Two inductors L1 and L2 are...Ch. 30 - Prob. 48PCh. 30 - Prob. 49PCh. 30 - Prob. 50PCh. 30 - ILW The current in an RL circuit drops from 1.0 A...Ch. 30 - Prob. 52PCh. 30 - Prob. 53PCh. 30 - Prob. 54PCh. 30 - Prob. 55PCh. 30 - Prob. 56PCh. 30 - In Fig. 30-65, R = 15 , L = 5.0 H, the ideal...Ch. 30 - Prob. 58PCh. 30 - Prob. 59PCh. 30 - Prob. 60PCh. 30 - Prob. 61PCh. 30 - A coil with an inductance of 2.0 H and a...Ch. 30 - Prob. 63PCh. 30 - Prob. 64PCh. 30 - Prob. 65PCh. 30 - A circular loop of wire 50 mm in radius carries a...Ch. 30 - Prob. 67PCh. 30 - Prob. 68PCh. 30 - ILW What must be the magnitude of a uniform...Ch. 30 - Prob. 70PCh. 30 - Prob. 71PCh. 30 - Prob. 72PCh. 30 - Prob. 73PCh. 30 - Prob. 74PCh. 30 - Prob. 75PCh. 30 - Prob. 76PCh. 30 - Prob. 77PCh. 30 - Prob. 78PCh. 30 - SSM In Fig. 30-71, the battery is ideal and = 10...Ch. 30 - Prob. 80PCh. 30 - Prob. 81PCh. 30 - A uniform magnetic field B is perpendicular to the...Ch. 30 - Prob. 83PCh. 30 - Prob. 84PCh. 30 - Prob. 85PCh. 30 - Prob. 86PCh. 30 - Prob. 87PCh. 30 - Prob. 88PCh. 30 - A coil with an inductance of 2.0 H and a...Ch. 30 - Prob. 90PCh. 30 - Prob. 91PCh. 30 - Prob. 92PCh. 30 - Prob. 93PCh. 30 - A long cylindrical solenoid with 100 turns/cm has...Ch. 30 - Prob. 95PCh. 30 - A square loop of wire is held in a uniform 0.24 T...Ch. 30 - Prob. 97PCh. 30 - The inductance of a closely wound coil is such...Ch. 30 - The magnetic field in the interstellar space of...Ch. 30 - Prob. 100PCh. 30 - A toroid has a 5.00 cm square cross section, an...
Additional Science Textbook Solutions
Find more solutions based on key concepts
What type of culture medium would increase the size of a bacterial capsule?
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
All of the following terms can appropriately describe humans except: a. primary consumer b. autotroph c. hetero...
Human Biology: Concepts and Current Issues (8th Edition)
1. ___ Mitosis 2. ___ Meiosis 3. __ Homologous chromosomes 4. __ Crossing over 5. __ Cytokinesis A. Cytoplasmic...
Microbiology with Diseases by Body System (5th Edition)
Use the key to classify each of the following described tissue types into one of the four major tissue categori...
Anatomy & Physiology (6th Edition)
Which latitudes in the Atlantic Ocean have the highest surface salinities?
Applications and Investigations in Earth Science (9th Edition)
22. A 71 kg baseball player jumps straight up to catch a hard-hit ball. If the 140 g ball is moving horizontall...
College Physics: A Strategic Approach (3rd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Two long coaxial copper tubes, each of length L, are connected to a battery of voltage V. The inner tube has inner radius o and outer radius b, and the outer tube has inner radius c and outer radius d. The tubes are then disconnected from the battery and rotated in the same direction at angular speed of radians per second about their common axis. Find the magnetic field (a) at a point inside the space enclosed by the inner tube r d. (Hint: Hunk of copper tubes as a capacitor and find the charge density based on the voltage applied, Q=VC, C=20LIn(c/b) .)arrow_forwardA uniform magnetic field points everywhere out of the page but with a magnitude that changes in time according to B = ct. (a) Find the maximum induced current through a circular conducting loop of radius R and resistance ro and (b) determine the direction of the induced current through the loop.arrow_forwardA pair of parallel conducting rails that are separated by a distance d-0.2 m lies at a right angle to a uniform magnetic field of 0.8 T directed into the paper. A resistor R-150 is connected across the rails. A conducting bar is moving to the right with speed v. If the electric power dissipated in the resistor is 0.2 W what is the speed of the bar (unit in m/s)? R 20 w O 18 O 24 0 11 09 05 O 15 888 88 Ø 80 8 * 8 00 H 100 80 8 88 8 88 88 18 < 88arrow_forward
- In the figure two straight conducting rails form a right angle. A conducting bar in contact with the rails starts at the vertex corner at time t=0 and moves with constant velocity of 5.2 m/s along them. A magnetic field of B=0.35 T is directed out of page. Calculate, (a) the flux through the triangle formed by the rails and bar at t=3.0 s, b) find the emf around the triangle at that time c) if the emf was ɛ = at" , where a and n are constants what is the value of n?arrow_forwardA loop of wire is at the edge of a region of space containing a uniform magnetic field B⃗. The plane of the loop is perpendicular to the magnetic field. Now the loop is pulled out of this region in such a way that the area Aof the coil inside the magnetic field region is decreasing at the constant rate ccc. That is, dA/dt=−c, with c>0. For the case of a square loop of side length L being pulled out of the magnetic field with constant speed v (see the figure), what is the rate of change of area c=−dA/dt?arrow_forward30.16 The particle shown in Fig. 30-14 is positively charged in all three cases. What is the direction of the force on it due to the magnetic field? Give its magnitude in terms of B, q, and v. B into page (a) (b) Fig. 30-14-arrow_forward
- xx x X *21 In Fig. 30-44, a stiff wire bent X x X a into a semicircle of radius a = 2.0 cm is rotated at constant angular speed 40 rev/s in a uniform 20 mT magnetic field. What are the (a) frequency and (b) amplitude of the emf induced in X X X X Ix the loop? R Fig. 30-44 Problem 21. X Xarrow_forwardFigure 30-54 shows a rod oflength L 10.0 cm that is forced tomove at constant speed v 5.00 m/salong horizontal rails. The rod, rails,and connecting strip at the rightform a conducting loop. The rod hasresistance 0.400 1; the rest of theloop has negligible resistance. A cur-rent i ! 100 A through the longstraight wire at distance a ! 10.0 mmfrom the loop sets up a (nonuniform)magnetic field through the looparrow_forwardA conducting circular loop of radius 0.20 m is placed in the xy-plane in a uniform magnetic field of 0.30 T that points in the positive z-direction, the same direction as the normal to the plane. (a) Calculate the magnetic flux through the loop.(b) Suppose the loop is rotated clockwise around the x-axis, so the normal direction now points at a 45.0° angle with respect to the z-axis. Recalculate the magnetic flux through the loop. (c) What is the change in flux due to the rotation of the loop?arrow_forward
- Compute the induced EMF in the small circular loop of wire centered at x=x0 and y=y0 on x-y plane resulting from the time varying magnetic diplole directed into the direction of z located on z axis at z=z0. The dipole moment of m of magnetic dipole is m = m, cos(ot) . The radius of small circular loop of wire is r1.(r1<arrow_forwardMagnetic field in air is given by H = 2cos(3t + π) az (A/m). A 10-turn conducting loop of radius 1 m is placed on the xy plane. Find the voltage Vm induced in the loop.arrow_forwardA conducting crossbar is in electrical contact with two vertical conducting wires and slides down those wires, pulled by gravity. The wires are connected with a 10 Ω resistor R to form a closed circuit as shown in the figure. The mass of the crossbar is 30 gm and its length ` between the vertical wires is 0.5 m. There is a horizontal magnetic field B = 1 Tesla perpendicular to the plane of the loop. a) What is the induced current needed to counterbalance the force of gravity? b) Indicate the direction the current is moving and why this is the direction. c) How fast will the crossbar be moving after the initial period of acceleration?arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
Recommended textbooks for you
Magnets and Magnetic Fields; Author: Professor Dave explains;https://www.youtube.com/watch?v=IgtIdttfGVw;License: Standard YouTube License, CC-BY