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The current in a 20.0-mH inductor changes with time as /= 2.00t²-8.00t, where / is in amperes and it is in seconds. (a) Find the magnitude of the induced emf at t = 1.00 s. -80 x How does the emf of an inductor depend on the current? mV (b) Find the magnitude of the induced emf at t = 4.00 s. 160 mv (c) At what time is the emf zero? x Is the current through an inductor zero when the emf is zero? s Need Help? Watch It

The current in a 20.0-mH inductor changes with time as /= 2.00t²-8.00t, where / is in amperes and it is in seconds. (a) Find the magnitude of the induced emf at t = 1.00 s. -80 x How does the emf of an inductor depend on the current? mV (b) Find the magnitude of the induced emf at t = 4.00 s. 160 mv (c) At what time is the emf zero? x Is the current through an inductor zero when the emf is zero? s Need Help? Watch It

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The current in a 20.0-mH inductor changes with time as/= 2.00t²-8.00t, where / is in amperes and it is in seconds. (a) Find the magnitude of the induced emf at t = 1.00 s. -80 How does the emf of an inductor depend on the current? mV (b) Find the magnitude of the induced emf at t= 4.00 s. 160 mv (c) At what time is the emf zero? x Is the current through an inductor zero when the emf is zero? s Need Help? Watch It
Transcribed Image Text:The current in a 20.0-mH inductor changes with time as/= 2.00t²-8.00t, where / is in amperes and it is in seconds. (a) Find the magnitude of the induced emf at t = 1.00 s. -80 How does the emf of an inductor depend on the current? mV (b) Find the magnitude of the induced emf at t= 4.00 s. 160 mv (c) At what time is the emf zero? x Is the current through an inductor zero when the emf is zero? s Need Help? Watch It
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