Determine the magnitude of the torque acting on the free end of the coil and caused by a 0.90-T field pointing westward when there is a 0.80-A current through the wire and when the coil is parallel to the table.

Determine the magnitude of the torque acting on the free end of the coil and caused by a 0.90-T field pointing westward when there is a 0.80-A current through the wire and when the coil is parallel to the table.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter24: Magnetic Fields

Section: Chapter Questions

Problem 70A

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

Not 90 N*m or 70 N*m

Determine the magnitude of the
torque acting on the free end of the
coil and caused by a 0.90-T field
pointing westward when there is a
0.80-A current through the wire
and when the coil is parallel to the
table.

A 500-turn square coil of wire is hinged to the top of a
table, as shown in the (Figure 1). Each side of the coil
has a length of 0.50 m.
Figure
O 1 of 1
N
Hinge
W
//i E
S
Hinge

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