You have two inductors that originally store the same amount of en- ergy. Then two things happen: (i) the magnetic field at every point in the first inductor becomes twice as large; and (ii) the magnetic flux density at every point in the second inductor is halved. What is the ratio of the stored energy in the first inductor to that of the second inductor after those two things have happened? (a) 1/4 (b) 1/16 (c) 4 (d) 1 (e) 16

You have two inductors that originally store the same amount of en- ergy. Then two things happen: (i) the magnetic field at every point in the first inductor becomes twice as large; and (ii) the magnetic flux density at every point in the second inductor is halved. What is the ratio of the stored energy in the first inductor to that of the second inductor after those two things have happened? (a) 1/4 (b) 1/16 (c) 4 (d) 1 (e) 16

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter25: Surge, Spike, And Lightning Protection

Section: Chapter Questions

Problem 10RQ: In reference to the load, how are capacitors connected to help prevent voltage spikes and surges?...

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