3. Assume the values given in the circuit diagram above. The switch is in position (a) for a long time before being thrown into position (b). The switch is designed to make the contact at (b) before breaking the contact at fa) and the inductor is ideal. a. What is the magnitude and direction of the current (up/down/zero) through the inductor right after the switch is thrown? (hint: use Ohm's law) b. What is the magnitude and direction (up/down/zero) of the EMF induced in the inductor right after the switch is thrown? (Hint: use the loop rule.) The answer is not 30V, 50V, 80V or 100V. c. What is the magnitude and direction of the current (up/down/zero) through the inductor a long time after the switch is thrown? (Hint: the inductor acts like a short)

3. Assume the values given in the circuit diagram above. The switch is in position (a) for a long time before being thrown into position (b). The switch is designed to make the contact at (b) before breaking the contact at fa) and the inductor is ideal. a. What is the magnitude and direction of the current (up/down/zero) through the inductor right after the switch is thrown? (hint: use Ohm's law) b. What is the magnitude and direction (up/down/zero) of the EMF induced in the inductor right after the switch is thrown? (Hint: use the loop rule.) The answer is not 30V, 50V, 80V or 100V. c. What is the magnitude and direction of the current (up/down/zero) through the inductor a long time after the switch is thrown? (Hint: the inductor acts like a short)

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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Question

R₁
(10 m)
0.2 H
ми
00000
&₁ = 50V
R₂
(200)
E₂ = 30V

3. Assume the values given in the circuit diagram above. The switch is in position (a) for a long time before being thrown
into position (b). The switch is designed to make the contact at (b) before breaking the contact at fa) and the inductor is
ideal.
a. What is the magnitude and direction of the current (up/down/zero) through the inductor right after the switch
is thrown? (hint: use Ohm's law)
b. What is the magnitude and direction (up/down/zero) of the EMF induced in the inductor right after the switch is
thrown? (Hint: use the loop rule.)
The answer is not 30V, 50V, 80V or 100V.
c. What is the magnitude and direction of the current (up/down/zero) through the inductor a long time after the
switch is thrown? (Hint: the inductor acts like a short)

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Step 2: a. Finding the magnitude and direction of the current (up/down/zero) through the inductor at t=0-.

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Step 3: Finding the magnitude and direction of the current (up/down/zero) through the inductor at t=0+.

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Step 4: b. Finding the magnitude and direction (up/down/zero) of the EMF induced in the inductor at t=0+.

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Step 5: c. Finding he magnitude and direction of the current (up/down/zero) through the inductor at t=∞.

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