A solenoid is to have an inductance of 0.285 mH, a cross-sectional area of 6.00x10-4 m2, and a length of 36.0cm. How many turns per unit length should it have? (Ans. 1.02x103 turns/m) If the self-induced emf is -12.5 mV at a given time, at what rate is the current changing at that instant. (Ans. 43.9 A/s)

A solenoid is to have an inductance of 0.285 mH, a cross-sectional area of 6.00x10-4 m2, and a length of 36.0cm. How many turns per unit length should it have? (Ans. 1.02x103 turns/m) If the self-induced emf is -12.5 mV at a given time, at what rate is the current changing at that instant. (Ans. 43.9 A/s)

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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