6.7 Assume in Problem 6.6 that the value of the voltage= across the inductor at i = 0 is –68 V instead of 28 V. a) Find the numerical expressions for i and v for 1 2 0. b) Specify the time intervals when the inductor is storing energy and the time intervals when the inductor is delivering energy. c) Show that the total energy extracted from the inductor is equal to the total energy stored.
6.7 Assume in Problem 6.6 that the value of the voltage= across the inductor at i = 0 is –68 V instead of 28 V. a) Find the numerical expressions for i and v for 1 2 0. b) Specify the time intervals when the inductor is storing energy and the time intervals when the inductor is delivering energy. c) Show that the total energy extracted from the inductor is equal to the total energy stored.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Answer only number 6.7
Transcribed Image Text:6.6 The current in a 20 mH inductor is known to be
i = 40 mA,
I s 0;
i = Aje-10,00K + Axe40.00A.
1 2 ).
The voltage across the inductor (passive sign con-
vention) is 28 V at t = 0.
a) Find the expression for the voltage across the
inductor for t > 0.
b) Find the time, greater than zero, when the power
at the terminals of the inductor is zero.
6.7 Assume in Problem 6.6 that the value of the voltage
across the inductor at i = 0 is -68 V instead of 28 V.
a) Find the numerical expressions for i and v for
1 2 0.
b) Specify the time intervals when the inductor is
storing energy and the time intervals when the
inductor is delivering energy.
c) Show that the total energy extracted from the
inductor is equal to the total energy stored.
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