A 292 turn circular coil of diameter 54 cm is placed in the earth's magnetic field 0.42 G, such that its magnetic dipole moment makes an angle 31° wi the field as shown in the picture. If the current in the circular coil is 120 A, then calculate the following: a) The magnetic dipole moment of the coil in Am2 = b) The torque on the current loop measured in Nm = c) The potential energy of the current loop in joules = ol

A 292 turn circular coil of diameter 54 cm is placed in the earth's magnetic field 0.42 G, such that its magnetic dipole moment makes an angle 31° wi the field as shown in the picture. If the current in the circular coil is 120 A, then calculate the following: a) The magnetic dipole moment of the coil in Am2 = b) The torque on the current loop measured in Nm = c) The potential energy of the current loop in joules = ol

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 71AP: How is the percentage change in the strength of the magnetic field across the face of the toroid...

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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

A 292 turn circular coil of diameter 54 cm is placed in the earth's magnetic field 0.42 G, such that its magnetic dipole moment makes an angle 31° with
the field as shown in the picture. If the current in the circular coil is 120 A, then calculate the following:
a) The magnetic dipole moment of the coil in Am? =
b) The torque on the current loop measured in Nm =
c) The potential energy of the current loop in joules =
ol

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