EBK PHYSICS FOR SCIENTISTS & ENGINEERS
EBK PHYSICS FOR SCIENTISTS & ENGINEERS
5th Edition
ISBN: 9780134296074
Author: GIANCOLI
Publisher: VST
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Chapter 28, Problem 40P

(a)

To determine

The magnitude and direction of the magnetic field at the center ,C.

(b)

To determine

The magnetic dipole moment of the circuit.

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(III) Two long thin parallel wires 13.0 cm apart carry 28-A currents in the same direction. Determine the magnetic field vector at a point 6.0 cm- 10.0 cm from one wire and 6.0 cm from the other (Fig. 20–-58). FIGURE 20-58 Problem 42. 13.0 cm 10.0 cm-
(I) A single square loop of wire 22.0 cm on a side is placed with its face parallel to the magnetic field as in Fig. 20-34b. When 5.70 A flows in the coil, the torque on it is 0.325 m • N. What is the magnetic field strength?
(II) The force on a wire is a maximum of 8.50 X 10-2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to “jump” toward the observer when the current is turned on. (a) What type ofmagnetic pole is the top pole face? (b) If the pole faces have a diameter of 10.0 cm, estimate the current in the wire if the field is 0.220 T. (c) If the wire is tipped so that it makes an angle of 10.0° with the horizontal, what force will it now feel? [Hint: What length of wire will now be in thefield?]
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