Answered: An RL circuit has an emf source of 28…

An RL circuit has an emf source of 28 v, a 62 resistor, a 38 H inductor, and a switch. At what rate, as a function of t, does the emf across the inductor

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter14: Inductance

Section: Chapter Questions

Problem 42P: The current I(t) through a 5.0-mH inductor varies with time, as shown below. The resistance of the...

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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.

Question

An RL circuit has an emf source of 28 v, a 62 resistor, a 38 H inductor, and a
switch. At what rate, as a function of t, does the emf across the inductor
change after the switch is closed?

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