A flat coil of wire has an area A, N turns, and a resistance R. It is situated in a magnetic field, such that the normal to the coil is parallel to the magnetic field. The coil is then rotated through an angle of 90°, so that the normal becomes perpendicular to the magnetic field. The coil has an area of 1.5 x 10-3 m2, 50 turns, and a resistance of 170 N. During the time while it is rotating, a charge of 7.5 × 10-5 C flows in the coil. What is the magnitude of the magnetic field?

A flat coil of wire has an area A, N turns, and a resistance R. It is situated in a magnetic field, such that the normal to the coil is parallel to the magnetic field. The coil is then rotated through an angle of 90°, so that the normal becomes perpendicular to the magnetic field. The coil has an area of 1.5 x 10-3 m2, 50 turns, and a resistance of 170 N. During the time while it is rotating, a charge of 7.5 × 10-5 C flows in the coil. What is the magnitude of the magnetic field?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter25: Electromagnetic Induction

Section: Chapter Questions

Problem 27A

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