Suppose the base unit of an inductive charger produces a 1.50×10^-3 T magnetic field. Varying this magnetic field magnitude changes the flux through a 13.0 turn circular loop in the device, creating an emf that charges its battery. Suppose the loop area is 2.75×10^-4 m^2 and the induced emf has an average magnitude of 5.30V. Calculate the time required (in s) for the magnetic field to decrease to zero from its max value

Suppose the base unit of an inductive charger produces a 1.50×10^-3 T magnetic field. Varying this magnetic field magnitude changes the flux through a 13.0 turn circular loop in the device, creating an emf that charges its battery. Suppose the loop area is 2.75×10^-4 m^2 and the induced emf has an average magnitude of 5.30V. Calculate the time required (in s) for the magnetic field to decrease to zero from its max value

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter13: Electromagnetic Induction

Section: Chapter Questions

Problem 24P: A 50-turn coil has a diameter of 15 cm. The coil is placed in a spatially uniform magnetic field of...

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A 50-turn coil has a diameter of 15 cm. The coil is placed in a spatially uniform magnetic field of magnitude 0.50 T so that the face of the coil and the magnetic field are perpendicular. Find the magnitude of the emf induced in the coil if the magnetic field is reduced to zero uniformly in (a) 0.10 s, (b) 1.0 s, and (c) 60 s.
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