Answered: R Figure 20.27 A series RL circuit. As…

R Figure 20.27 A series RL circuit. As the current increases toward its maxi- mum value, the inductor produces an emf that opposes the increasing current. ell

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter14: Inductance

Section: Chapter Questions

Problem 12CQ: When the current in the RL circuit of Figure 14.12(b) reaches its final value /R, what is the...

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Question

100%

The switch S in Figure 20.27 is closed at t = 0 and the current
at a reference time t_ref > 0 is I_ref. If the circuit is changed as
described below and the switch is again closed at t = 0, determine
whether the current I at the same time t_ref would be
greater than, less than, or equal to the original value of I_ref.
Indicate your answers with G, L, or E, respectively. (a) Both
the battery voltage ε and the resistance R are doubled. (b)
The inductance L is doubled. (c) The battery voltage ε, the
resistance R , and the inductance L are each doubled.

R
Figure 20.27 A series RL circuit. As
the current increases toward its maxi-
mum value, the inductor produces
an emf that opposes the increasing
current.
ell

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