A 24-V battery is connected in series with a resistor and aninductor, with R = 8.0 Ω and L = 4.0 H, respectively. Find theenergy stored in the inductor (a) when the current reaches itsmaximum value and (b) one time constant after the switch isclosed.

A 24-V battery is connected in series with a resistor and aninductor, with R = 8.0 Ω and L = 4.0 H, respectively. Find theenergy stored in the inductor (a) when the current reaches itsmaximum value and (b) one time constant after the switch isclosed.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter23: Faraday’s Law And Inductance

Section: Chapter Questions

Problem 37P

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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.

Question

A 24-V battery is connected in series with a resistor and an
inductor, with R = 8.0 Ω and L = 4.0 H, respectively. Find the
energy stored in the inductor (a) when the current reaches its
maximum value and (b) one time constant after the switch is
closed.

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