In a 220-turn automobile alternator, the magnetic flux in each turn is B = 2.50 × 10-4 cos wt, where B is in webers, w is the angular speed of the alternator, and t is in seconds. The alternator is geared to rotate two times for each engine revolution. The engine is running at an angular speed of 1.00 × 10³ rev/min. (a) Determine the induced emf in the alternator as a function of time. (Assume & is in V.) E=11.5 (b) Determine the maximum emf in the alternator.

In a 220-turn automobile alternator, the magnetic flux in each turn is B = 2.50 × 10-4 cos wt, where B is in webers, w is the angular speed of the alternator, and t is in seconds. The alternator is geared to rotate two times for each engine revolution. The engine is running at an angular speed of 1.00 × 10³ rev/min. (a) Determine the induced emf in the alternator as a function of time. (Assume & is in V.) E=11.5 (b) Determine the maximum emf in the alternator.

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

Chapter31: Faraday’s Law

Section: Chapter Questions

Problem 31.45P: In a 250-turn automobile alternator, the magnetic flux in each turn is B, = 2.50 104 cos t, where...

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