7. A metal rod of length L which is placed on two parallel conductors in a magnetic field Bwhich is directed perpendicularly into the paper is shown in the diagram.BRAppliedThe two parallel conductors are separated by a distance /and connected to a resistor R.If the metal rod slides at constant speed v, which expression represents the applied force?А. BlyB21?vC.RВ. BLvB²L?vD.R

E.m.f induced at the ends of the rod: ε=Blv

.A metal rod of length L which is placed on two parallel conductors in a magnetic field B which is directed perpendicularly into the paper is shown in the diagram. Applied The two parallel conductors are separated by a distance /and connected to a resistor R. If the metal rod slides at constant speed v, which expression represents the applied force? А. Blv B²1?v С. R В. BLv B²L²v D.

.A metal rod of length L which is placed on two parallel conductors in a magnetic field B which is directed perpendicularly into the paper is shown in the diagram. Applied The two parallel conductors are separated by a distance /and connected to a resistor R. If the metal rod slides at constant speed v, which expression represents the applied force? А. Blv B²1?v С. R В. BLv B²L²v D.

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

7. A metal rod of length L which is placed on two parallel conductors in a magnetic field B
which is directed perpendicularly into the paper is shown in the diagram.
B
R
Applied
The two parallel conductors are separated by a distance /and connected to a resistor R.
If the metal rod slides at constant speed v, which expression represents the applied force?
А. Bly
B21?v
C.
R
В. BLv
B²L?v
D.
R

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