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The figure at right shows a circular wire loop of total resistance R. The loop is contained within a region having a uniform magnetic field B pointing out of the page, and is attached to a motor that keeps it rotating around the y-axis in a clockwise direction (when looking in the negative y-direction) at constant angular velocity w. The loop is initially parallel to the x-y plane (the plane of the paper), as shown. rloop When the loop in in the x-y plane as shown, what is the magnetic flux, PB, of the loop? O B out of page B = 0.75 T w = 40 rad/s Rioop = 50 Q = 5 cm rloop When the loop has rotated by 90° so that it is lies in the y-z plane, what is the magnetic flux, D8, of the loop?

The figure at right shows a circular wire loop of total resistance R. The loop is contained within a region having a uniform magnetic field B pointing out of the page, and is attached to a motor that keeps it rotating around the y-axis in a clockwise direction (when looking in the negative y-direction) at constant angular velocity w. The loop is initially parallel to the x-y plane (the plane of the paper), as shown. rloop When the loop in in the x-y plane as shown, what is the magnetic flux, PB, of the loop? O B out of page B = 0.75 T w = 40 rad/s Rioop = 50 Q = 5 cm rloop When the loop has rotated by 90° so that it is lies in the y-z plane, what is the magnetic flux, D8, of the loop?

College Physics
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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• The figure at right shows a circular wire loop of total resistance R. The loop is contained within a region having a uniform magnetic field B pointing out of the page, and that keeps it rotating around the y-axis in a clockwise direction (when looking in the negative y-direction) at constant angular velocity w. The loop is initially parallel to the x-y plane (the plane of the paper), as shown. attached to a motor rloop When the loop in in the x-y plane as shown, what is the magnetic flux, OB, of the loop? out of page B = 0.75 T w = 40 rad/s Rioop = 50 Q 5 сm rloop OWhen the loop has rotated by 90° so that it is lies in the y-z plane, what is the magnetic flux, OB, of the loop?
Transcribed Image Text:• The figure at right shows a circular wire loop of total resistance R. The loop is contained within a region having a uniform magnetic field B pointing out of the page, and that keeps it rotating around the y-axis in a clockwise direction (when looking in the negative y-direction) at constant angular velocity w. The loop is initially parallel to the x-y plane (the plane of the paper), as shown. attached to a motor rloop When the loop in in the x-y plane as shown, what is the magnetic flux, OB, of the loop? out of page B = 0.75 T w = 40 rad/s Rioop = 50 Q 5 сm rloop OWhen the loop has rotated by 90° so that it is lies in the y-z plane, what is the magnetic flux, OB, of the loop?
When the loop has rotated by 90° so that it is lies in the y-z plane, what is the magnitude of the induced emf in the loop? Which of the following graphs best represents the EMF induced in the loop as a function of time? (The emf changes sign if the induced current changes direction; an emf of zero is denoted on the graphs. In the initial (t=0) position shown in the figure above, the emf is defined to be positive if it leads to clockwise current in the loop). (a) E (b) EA (c) EA " m. (d) E (e) EL If the resistance R of the loop is increased (but all other parameters remain unchanged) the maximum torque needed to rotate the loop at the same angular velocity a. increases. b. remains the same. c. decreases.
Transcribed Image Text:When the loop has rotated by 90° so that it is lies in the y-z plane, what is the magnitude of the induced emf in the loop? Which of the following graphs best represents the EMF induced in the loop as a function of time? (The emf changes sign if the induced current changes direction; an emf of zero is denoted on the graphs. In the initial (t=0) position shown in the figure above, the emf is defined to be positive if it leads to clockwise current in the loop). (a) E (b) EA (c) EA " m. (d) E (e) EL If the resistance R of the loop is increased (but all other parameters remain unchanged) the maximum torque needed to rotate the loop at the same angular velocity a. increases. b. remains the same. c. decreases.
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