A square loop of wire with a single turn and side l = 1.0 cm is placed inside a solenoid that has a circular cross section of radius r = 3.0 cm, as shown in the figure, which is a view from one of its ends . The solenoid has a length L = 20.0 cm and N = 100 turns of wire. ( Now the current varies in time according to I (t) = I0cos (ωt) , where ω is a constant, if T = 2π / ω is the period of variation, what is the first instant in which the electromotive force reaches its maximum value

A square loop of wire with a single turn and side l = 1.0 cm is placed inside a solenoid that has a circular cross section of radius r = 3.0 cm, as shown in the figure, which is a view from one of its ends . The solenoid has a length L = 20.0 cm and N = 100 turns of wire. ( Now the current varies in time according to I (t) = I0cos (ωt) , where ω is a constant, if T = 2π / ω is the period of variation, what is the first instant in which the electromotive force reaches its maximum value

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter31: Gauss’s Law For Magnetism And Ampère’s Law

Section: Chapter Questions

Problem 67PQ

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Concept explainers

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.

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Now the current varies in time according to I (t) = I0cos (ωt) , where ω is a constant, if T = 2π / ω is the period of variation, what is the first instant in which the electromotive force reaches its maximum value

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