A square loop of area A carries a current I. If the coil plane is perpendicular to a magnetic field B, what is the magnitude of the torque exerted on the loop? O O Nm O IAB Cos 90° Nm IAB Sin 180° Nm O IAB Cos 180° Nm IAB Sin 90° Nm

A square loop of area A carries a current I. If the coil plane is perpendicular to a magnetic field B, what is the magnitude of the torque exerted on the loop? O O Nm O IAB Cos 90° Nm IAB Sin 180° Nm O IAB Cos 180° Nm IAB Sin 90° Nm

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter30: Magnetic Fields And Forces

Section: Chapter Questions

Problem 72PQ

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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 square loop of area A carries a current I. If the coil plane is perpendicular to a magnetic field B, what is the magnitude of the torque exerted on the loop?
O O Nm O IAB Cos 90° Nm
IAB Sin 180° Nm O IAB Cos 180° Nm
IAB Sin 90° Nm

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