1. A large research solenoid has a self-inductance of 26 H. (a) What induced emf opposes shutting it off when 80 A of current through it is switched off in 70 ms? EMF= (b) How much energy is stored in the inductor at full current? W= V (c) At what rate in watts must energy be dissipated to switch the current off in 70 ms? P= MW (d) In view of the answer to the last part, is it surprising that shutting it down this quickly is difficult? O Yes O No

1. A large research solenoid has a self-inductance of 26 H. (a) What induced emf opposes shutting it off when 80 A of current through it is switched off in 70 ms? EMF= (b) How much energy is stored in the inductor at full current? W= V (c) At what rate in watts must energy be dissipated to switch the current off in 70 ms? P= MW (d) In view of the answer to the last part, is it surprising that shutting it down this quickly is difficult? O Yes O No

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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