A conducting spherical shell is placed on one end of a long solenoid. If the current is doubled, then the induced emf through the sphere will be a.) zero b.) halved c.) doubled d.) cannot be determined

A conducting spherical shell is placed on one end of a long solenoid. If the current is doubled, then the induced emf through the sphere will be a.) zero b.) halved c.) doubled d.) cannot be determined

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 48A

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Concept explainers

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.

Question

A conducting spherical shell is placed on one end of a long
solenoid. If the current is doubled, then the induced emf
through the sphere will be
a.) zero
b.) halved
c.) doubled
d.) cannot be determined

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