The current in the RL circuit shown below reaches one-fifth its maximum value in 2.00 ms after the switch S1 is thrown. (a)Determine the time constant of the circuit (in ms). (b)Determine the resistance of the circuit (in Ω) if L = 200 mH.

The current in the RL circuit shown below reaches one-fifth its maximum value in 2.00 ms after the switch S1 is thrown. (a)Determine the time constant of the circuit (in ms). (b)Determine the resistance of the circuit (in Ω) if L = 200 mH.

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

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 58P

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Question

The current in the RL circuit shown below reaches one-fifth its maximum value in 2.00 ms after the switch S₁ is thrown.

(a)Determine the time constant of the circuit (in ms).

(b)Determine the resistance of the circuit (in Ω) if L = 200 mH.

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