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A В C elle L R it Switch Vo FIGURE 21-37 LR circuit.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter14: Inductance

Section: Chapter Questions

Problem 20CQ: Discuss possible practical applications of RL circuits.

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Question

(II) How many time constants does it take for the
potential difference across the resistor in an LR circuit like
that in Fig. 21–37 to drop to 2.5% of its original value, after
the switch is moved to the upper position, removing from
the circuit?

A
В
C
elle
L
R
it
Switch
Vo
FIGURE 21-37 LR circuit.

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