A conducting loop has an area of 0.065 m? and is positioned such that a uniform magnetic field is perpendicular to the plane of the loop. When the magnitude of the magnetic field decreases to 0.30 T in 0.087 s, the average induced emf in the loop is 1.2 V. What is the initial value of the magnetic field?

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter23: Faraday’s Law And Inductance
Section: Chapter Questions
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A. 0.87 T B. 1.9 T C. 0.75 T D. 1.2 T E. 0.42 T
A conducting loop has an area of 0.065 m? and is positioned such that a uniform magnetic
field is perpendicular to the plane of the loop. When the magnitude of the magnetic field
decreases to 0.30 T in 0.087 s, the average induced emf in the loop is 1.2 V. What is the
initial value of the magnetic field?
Transcribed Image Text:A conducting loop has an area of 0.065 m? and is positioned such that a uniform magnetic field is perpendicular to the plane of the loop. When the magnitude of the magnetic field decreases to 0.30 T in 0.087 s, the average induced emf in the loop is 1.2 V. What is the initial value of the magnetic field?
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