onducting bar of length { moves to the right on two frictionless rails as shown in the figure below. A uniform magnetic field directed into the page has a magnitude of 0.290 T. Assume R = 8.70 N and { = 0.370 m. Bn (a) At what constant speed should the bar move to produce an 8.20-mA current in the resistor? m/s (b) What is the direction of the induced current? O clockwise O counterclockwise O into the page O out of the page (c) At what rate is energy delivered to the resistor? (d) Explain the origin of the energy being delivered to the resistor.

onducting bar of length { moves to the right on two frictionless rails as shown in the figure below. A uniform magnetic field directed into the page has a magnitude of 0.290 T. Assume R = 8.70 N and { = 0.370 m. Bn (a) At what constant speed should the bar move to produce an 8.20-mA current in the resistor? m/s (b) What is the direction of the induced current? O clockwise O counterclockwise O into the page O out of the page (c) At what rate is energy delivered to the resistor? (d) Explain the origin of the energy being delivered to the resistor.

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

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.

Question

A conducting bar of length { moves to the right on two frictionless rails as shown in the figure below. A uniform magnetic field directed into the page has a magnitude of 0.290 T. Assume R = 8.70 Q and { = 0.370 m.
Bin
R
(a) At what constant speed should the bar move to produce an 8.20-mA current in the resistor?
m/s
(b) What is the direction of the induced current?
O clockwise
O counterclockwise
O into the page
O out of the page
(c) At what rate is energy delivered to the resistor?
(d) Explain the origin of the energy being delivered to the resistor.

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