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A flip coil is a relatively simple device used to measure a magnetic field. It consists of a circular coil of N turns wound with fine conducting wire. The coil is attached to a ballistic galvanometer, a device that measures the total charge that passes through it. The coil is placed in a magnetic field B such that its face is perpendicular to the field. It is then flipped through 180°, and the total charge Q that flows through the galvanometer is measured. (a) If the total resistance of the coil and galvanometer is R, what is the relationship between B and Q? Because the coil is very small, you can assume that B is uniform over it. Ο Βα 1 OBα Q² Ο Βα 1 Βαρ (b) How can you determine whether or not the magnetic field is perpendicular to the face of the coil? O The coil is hardest to turn when the magnetic field is perpendicular to its face. The coil is easiest to turn when the magnetic field is perpendicular to its face.

A flip coil is a relatively simple device used to measure a magnetic field. It consists of a circular coil of N turns wound with fine conducting wire. The coil is attached to a ballistic galvanometer, a device that measures the total charge that passes through it. The coil is placed in a magnetic field B such that its face is perpendicular to the field. It is then flipped through 180°, and the total charge Q that flows through the galvanometer is measured. (a) If the total resistance of the coil and galvanometer is R, what is the relationship between B and Q? Because the coil is very small, you can assume that B is uniform over it. Ο Βα 1 OBα Q² Ο Βα 1 Βαρ (b) How can you determine whether or not the magnetic field is perpendicular to the face of the coil? O The coil is hardest to turn when the magnetic field is perpendicular to its face. The coil is easiest to turn when the magnetic field is perpendicular to its face.

Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter22: Magnetic Forces And Magnetic Fields
Section: Chapter Questions
Problem 80P
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A flip coil is a relatively simple device used to measure a magnetic field. It consists of a circular coil of N turns wound with fine conducting wire. The coil is attached to a ballistic galvanometer, a device that measures the total charge that passes through it. The coil is placed in a magnetic field B such that its face is perpendicular to the field. It is then flipped through 180°, and the total charge Q that flows through the galvanometer is measured. (a) If the total resistance of the coil and galvanometer is R, what is the relationship between B and Q? Because the coil is very small, you can assume that B is uniform over it. Ο Βα 1 OBα Q² Ο Βα 1 Βαρ (b) How can you determine whether or not the magnetic field is perpendicular to the face of the coil? O The coil is hardest to turn when the magnetic field is perpendicular to its face. The coil is easiest to turn when the magnetic field is perpendicular to its face.
Transcribed Image Text:A flip coil is a relatively simple device used to measure a magnetic field. It consists of a circular coil of N turns wound with fine conducting wire. The coil is attached to a ballistic galvanometer, a device that measures the total charge that passes through it. The coil is placed in a magnetic field B such that its face is perpendicular to the field. It is then flipped through 180°, and the total charge Q that flows through the galvanometer is measured. (a) If the total resistance of the coil and galvanometer is R, what is the relationship between B and Q? Because the coil is very small, you can assume that B is uniform over it. Ο Βα 1 OBα Q² Ο Βα 1 Βαρ (b) How can you determine whether or not the magnetic field is perpendicular to the face of the coil? O The coil is hardest to turn when the magnetic field is perpendicular to its face. The coil is easiest to turn when the magnetic field is perpendicular to its face.
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