Problem 3 The following circuit is used by a biology student to study “frog kick." She noticed that the frog kicked a little when the switch was closed but kicked violently when the switch was opened. Model the frog as a resistor (Rfrog = 1000N). Assume that switch has been closed for a long time. a) Compute the initial inductor current under DC conditions. b) At t = Os the switch is opened. Compute inductor current for t 2 0. c) What is voltage applied to frog for t 2 0? What could be a possible reason for the frog's violent kick?

Problem 3 The following circuit is used by a biology student to study “frog kick." She noticed that the frog kicked a little when the switch was closed but kicked violently when the switch was opened. Model the frog as a resistor (Rfrog = 1000N). Assume that switch has been closed for a long time. a) Compute the initial inductor current under DC conditions. b) At t = Os the switch is opened. Compute inductor current for t 2 0. c) What is voltage applied to frog for t 2 0? What could be a possible reason for the frog's violent kick?

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter17: Resistive-inductive Series Circuits

Section: Chapter Questions

Problem 2PA: You are a journeyman electrician working in an industrial plant. Your task is to connect an inductor...

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Question

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Problem 3
The following circuit is used by a biology student to study “frog kick."
She noticed that the frog kicked a little when the switch was closed but kicked violently when
the switch was opened. Model the frog as a resistor (Rrrog = 10000). Assume that switch
has been closed for a long time.
a) Compute the initial inductor current under DC conditions.
b) Att = Os the switch is opened. Compute inductor current for t 2 0.
c) What is voltage applied to frog for t > 0? What could be a possible reason for the frog's
violent kick?
Switch
50 Ω
Frog
12 V
2H

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