A circular wire coil with 26 turns and radius 3.81 cm is placed in a uniform magnetic field of strength 7.91 T, directed perpendicular to the plane of the wire loops. Over a period of 1.72 s, the magnetic field fades away to zero. What is the average induced emf (voltage) in the coil over this period of time?

A circular wire coil with 26 turns and radius 3.81 cm is placed in a uniform magnetic field of strength 7.91 T, directed perpendicular to the plane of the wire loops. Over a period of 1.72 s, the magnetic field fades away to zero. What is the average induced emf (voltage) in the coil over this period of time?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter23: Electromagnetic Induction, Ac Circuits, And Electrical Technologies

Section: Chapter Questions

Problem 36PE: A 75-turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 radius in a 1.25 T field,...

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A 75-turn, 10.0 cm diameter coil rotates at an angular velocity of 8.00 radius in a 1.25 T field, starting with the plane of the coil parallel to the field. (a) What is the peak emf? (b) At what time is the peak emf first reached? (c) At what time is the emf first at its meet negative? (d) What is the period of the AC voltage output?
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