A conducting bar of mass M slides without friction down two vertical conducting rails, which are separated by a distance L and are joined at the top through an unknown resistance. The bar maintains electrical contact with the rails at all time. There is a uniform magnetic field B directed into the page, as shown. The bar is observed to ultimately fall with a constant terminal speed of vo. a) On the figure, draw all forces acting on the bar. b) Determine the magnitude of the induced current, I, in the bar, as it falls with the terminal velocity. c) Determine the voltage induced in the bar, in terms of B, L, g, vo, and M. d) Determine the resistance R in terms of B, L, g, Vo, and M. R Binto page)

A conducting bar of mass M slides without friction down two vertical conducting rails, which are separated by a distance L and are joined at the top through an unknown resistance. The bar maintains electrical contact with the rails at all time. There is a uniform magnetic field B directed into the page, as shown. The bar is observed to ultimately fall with a constant terminal speed of vo. a) On the figure, draw all forces acting on the bar. b) Determine the magnitude of the induced current, I, in the bar, as it falls with the terminal velocity. c) Determine the voltage induced in the bar, in terms of B, L, g, vo, and M. d) Determine the resistance R in terms of B, L, g, Vo, and M. R Binto page)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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 conducting bar of mass M slides without friction down two vertical conducting rails, which are separated by a
distance L and are joined at the top through an unknown resistance. The bar maintains electrical contact with the
rails at all time. There is a uniform magnetic field B directed into the page, as shown. The bar is observed to
ultimately fall with a constant terminal speed of vo.
2.
a) On the figure, draw all forces acting on the bar.
b) Determine the magnitude of the induced current, I, in the bar, as it falls with the terminal velocity.
c) Determine the voltage induced in the bar, in terms of B, L, g, vo, and M.
d) Determine the resistance R in terms of B, L, g, vo, and M.
R
Binto
page)

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