EP PHYSICS F/SCI.+ENG.W/MOD..-MOD.MAST.
5th Edition
ISBN: 9780134402635
Author: GIANCOLI
Publisher: PEARSON CO
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Chapter 28, Problem 18P
To determine
The magnitude and the direction of the net force on the loop.
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(II) A rectangular loop of wire is placed next to a straight
wire, as shown in Fig. 20-55. There is a current of 3.5 A in
both wires. Deter-
3.5 A
mine the magnitude
and direction of the
net force on the loop.
3.5 A
3.0 cm
5.0 cm
FIGURE 20-55
Problem 31.
10.0 cm-
(I) How much current is flowing in a wire 4.80 m long if themaximum force on it is 0.625 N when placed in a uniform0.0800-T field?
(III) A long copper strip 1.8 cm wide and 1.0 mm thick isplaced in a 1.2-T magnetic field as in Fig. 20–21a. When asteady current of 15 A passes through it, the Hall emf ismeasured to be 1.02µV. Determine (a) the drift velocity ofthe electrons and (b) the density of free (conducting) electrons (number per unit volume) in the copper.
Chapter 28 Solutions
EP PHYSICS F/SCI.+ENG.W/MOD..-MOD.MAST.
Ch. 28 - The magnetic field due to current in wires in your...Ch. 28 - Compare and contrast the magnetic field due to a...Ch. 28 - Two insulated long wires carrying equal currents I...Ch. 28 - Prob. 4QCh. 28 - (a) Write Ampres law for a path that surrounds...Ch. 28 - Use the Biot-Savart law to show that the field of...Ch. 28 - Prob. 9QCh. 28 - Why does twisting the lead-in wires to electrical...Ch. 28 - Compare the Biot-Savart law with Coulombs law....Ch. 28 - Will a magnet attract any metallic object, such as...
Ch. 28 - An unmagnetized nail will not attract an...Ch. 28 - Prob. 18QCh. 28 - Prob. 5PCh. 28 - (II) A third wire is placed in the plane of the...Ch. 28 - Prob. 18PCh. 28 - (II) Let two long parallel wires, a distance d...Ch. 28 - (II) Repeat Problem 19 if the wire at x = 0...Ch. 28 - Prob. 36PCh. 28 - (II) A wire, in a plane, has the shape shown in...Ch. 28 - (II) A circular conducting ring of radius R is...Ch. 28 - Prob. 40PCh. 28 - Prob. 56GPCh. 28 - A rectangular loop of wire carries a 2.0-A current...Ch. 28 - Prob. 60GPCh. 28 - A 175-g model airplane charged to 18.0 mC and...
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