A square wire loop 20 cm on a side, with resistance 20 m2, lies in the plane of the page in a uniform magnetic field of magnitude B= 2.0 T that points out of the page. If you pull two opposite sides of the loop away from each other, the other two sides automatically draw toward each other, reducing the area enclosed by the loop. If the area is reduced to zero in time Ar=0.20 s, what are (a) the average induced emf and (b) the average induced current in the loop during Ar? Include a diagram and indicate (c) the direction of the induced current in the loop.
A square wire loop 20 cm on a side, with resistance 20 m2, lies in the plane of the page in a uniform magnetic field of magnitude B= 2.0 T that points out of the page. If you pull two opposite sides of the loop away from each other, the other two sides automatically draw toward each other, reducing the area enclosed by the loop. If the area is reduced to zero in time Ar=0.20 s, what are (a) the average induced emf and (b) the average induced current in the loop during Ar? Include a diagram and indicate (c) the direction of the induced current in the loop.
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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Transcribed Image Text:A square wire loop 20 cm on a side, with resistance 20 m2, lies in the plane of the page in a
uniform magnetic field of magnitude B= 2.0 T that points out of the page. If you pull two
opposite sides of the loop away from each other, the other two sides automatically draw
toward each other, reducing the area enclosed by the loop. If the area is reduced to zero in
time At = 0.20 s, what are (a) the average induced emf and (b) the average induced current in
the loop during Af? Include a diagram and indicate (c) the direction of the induced current in
the loop.
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