**45 Figure 28-44 shows a 4B wood cylinder of mass m = 0.250 kg and length L = 0.100 m, with N = 10.0 turns of wire wrapped around it longitudi- nally, so that the plane of the wire coil contains the long cen- tral axis of the cylinder. The cylinder is released on a plane inclined at an angle 0 to the horizontal, with the plane of the coil parallel to the incline plane. If there is a vertical uniform magnetic field of magni- tude 0.500 T, what is the least current i through the coil that keeps the cylinder from rolling down the plane? sSM Fig. 28-44 Problem 45.

**45 Figure 28-44 shows a 4B wood cylinder of mass m = 0.250 kg and length L = 0.100 m, with N = 10.0 turns of wire wrapped around it longitudi- nally, so that the plane of the wire coil contains the long cen- tral axis of the cylinder. The cylinder is released on a plane inclined at an angle 0 to the horizontal, with the plane of the coil parallel to the incline plane. If there is a vertical uniform magnetic field of magni- tude 0.500 T, what is the least current i through the coil that keeps the cylinder from rolling down the plane? sSM Fig. 28-44 Problem 45.

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

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.

Question

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••45 Figure 28-44 shows a
wood cylinder of mass m =
0.250 kg and length L = 0.100
m, with N = 10.0 turns of wire
4B
wrapped around it longitudi-
nally, so that the plane of the
wire coil contains the long cen-
tral axis of the cylinder. The
cylinder is released on a plane
inclined at an angle 0 to the
horizontal, with the plane of
the coil parallel to the incline
plane. If there is a vertical uniform magnetic field of magni-
tude 0.500 T, what is the least current i through the coil that
keeps the cylinder from rolling down the plane? SSM
Fig. 28-44 Problem 45.

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