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
Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter32: Inductance
Section: Chapter Questions
Problem 32.9P
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