Two rails with zero resistance are placed at a distance D apart on an included ramp with angle 0. They are joined at the bottom by a resistor R. At the top, a copper bar of mass M (ignore its resistance) is laid across the rails. The whole apparatus is immersed in a vertical magnetic field of strength B. The rod slides down without friction and with a constant velocity. a) Explain qualitatively what the direction of the induced current in the loop is. b) Find the Emf induced as a function of known parameters and the velocity of the rod. c) Find the induced current as a function of known parameters and the rod's velocity. d) Find the direction of the magnetic force acting on the sliding rod. e) Find the magnitude of the magnetic force that the sliding rod experiences rod as a function of known parameters and the velocity of the rod. f) Find the velocity of the sliding rod as a function of known parameters.

Two rails with zero resistance are placed at a distance D apart on an included ramp with angle 0. They are joined at the bottom by a resistor R. At the top, a copper bar of mass M (ignore its resistance) is laid across the rails. The whole apparatus is immersed in a vertical magnetic field of strength B. The rod slides down without friction and with a constant velocity. a) Explain qualitatively what the direction of the induced current in the loop is. b) Find the Emf induced as a function of known parameters and the velocity of the rod. c) Find the induced current as a function of known parameters and the rod's velocity. d) Find the direction of the magnetic force acting on the sliding rod. e) Find the magnitude of the magnetic force that the sliding rod experiences rod as a function of known parameters and the velocity of the rod. f) Find the velocity of the sliding rod as a function of known parameters.

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

Problem 2:
Two rails with zero resistance are placed at a distance D apart on an included ramp with angle 0.
They are joined at the bottom by a resistor R. At the top, a copper bar of mass M (ignore its
resistance) is laid across the rails. The whole apparatus is immersed in a vertical magnetic field of
strength B. The rod slides down without friction and with a constant velocity.
a) Explain qualitatively what the direction of the induced current in the loop is.
b) Find the Emf induced as a function of known parameters and the velocity of the rod.
c) Find the induced current as a function of known parameters and the rod's velocity.
d) Find the direction of the magnetic force acting on the sliding rod.
e) Find the magnitude of the magnetic force that the sliding rod experiences rod as a function of
known parameters and the velocity of the rod.
f) Find the velocity of the sliding rod as a function of known parameters.
D
Ꮎ
R

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