An inductor L=47 H is connected in series with a resistor R=25 ohms and a voltage source V=12 V and an initially open switch. At time t=0, he switch is closed. What is the current in the circuit at time t=1.00s?

An inductor L=47 H is connected in series with a resistor R=25 ohms and a voltage source V=12 V and an initially open switch. At time t=0, he switch is closed. What is the current in the circuit at time t=1.00s?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter33: Inductors And Ac Circuits

Section: Chapter Questions

Problem 33PQ

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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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a) .059 A

b) .097 A

c) .152 A

d) .198 A

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