Answered: 28 A constant voltage is applied to a…

28 A constant voltage is applied to a series RL circuit at t=0. The voltage across the inductance is 20V at 3.46ms and 5 V at 25ms. Obtain R if L=2 H. 128.7 ohms 217.8 ohms 281.7 ohms 155.4 ohms

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter21: Resistive-capacitive Series Circuits

Section: Chapter Questions

Problem 2PP: Assume that the voltage drop across the resistor, ER, is 78 V; the voltage drop across the...

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Question

28
A constant voltage is applied to a series RL circuit at t=0.
The voltage across the
inductance is 20V at 3.46ms and 5 V at 25ms. Obtain R if L=2 H.
128.7 ohms
217.8 ohms
281.7 ohms
155.4 ohms

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