A wire 12cm long carrying a current of 30A is placed in between the pole face of a magnet whose magnetic flux density is 0.9tesla. If the wire inclined at angle of 30degrees from the plane of the magnetic field, what is the force exerted on the wire? Answer ____ N

A wire 12cm long carrying a current of 30A is placed in between the pole face of a magnet whose magnetic flux density is 0.9tesla. If the wire inclined at angle of 30degrees from the plane of the magnetic field, what is the force exerted on the wire? Answer ____ N

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 55A

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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

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1. A wire 12cm long carrying a current of 30A is placed in between the pole face of a magnet whose magnetic flux density is 0.9tesla. If the wire inclined at angle of 30degrees from the plane of the magnetic field, what is the force exerted on the wire? Answer ____ N

2. Calculate the magnetic field intensity to produce a flux density of 100x10^-3 tesla at the center of a long straight solenoid. Answer ______ AT/m

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