The current i through a 6.5 H inductor varies with time t as shown by the graph of the figure. The inductor has a resistance of 12 2. Find the magnitude of the induced emf ɛ during the time intervals (a) t = 0 to 2 ms; (b) 2 ms to 5 ms, and (c) 5 ms to 6 ms. (Ignore the behavior at the ends of the intervals.) 2 4 6 t (ms) 6, (V)!

The current i through a 6.5 H inductor varies with time t as shown by the graph of the figure. The inductor has a resistance of 12 2. Find the magnitude of the induced emf ɛ during the time intervals (a) t = 0 to 2 ms; (b) 2 ms to 5 ms, and (c) 5 ms to 6 ms. (Ignore the behavior at the ends of the intervals.) 2 4 6 t (ms) 6, (V)!

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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Concept explainers

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.

Question

The current i through a 6.5 H inductor varies with time t as shown by the
graph of the figure. The inductor has a resistance of 12 2. Find the
magnitude of the induced emf ɛ during the time intervals (a) t = 0 to 2
ms; (b) 2 ms to 5 ms, and (c) 5 ms to 6 ms. (Ignore the behavior at the
ends of the intervals.)
2
4
6
t (ms)
6,
(V)!

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