Fundamentals of Physics Extended (10th Edition)

Published by Wiley
ISBN 10: 1-11823-072-8
ISBN 13: 978-1-11823-072-5

Chapter 31 - Electromagnetic Oscillations and Alternating Current - Questions - Page 935: 13a

Answer

The phasor diagram corresponds to an alternating emf source connected to an inductor.

Work Step by Step

When an alternating emf source is connected to an inductor, the current curve lags behind the emf curve by $90^{\circ}$ as shown in this diagram. Therefore, the phasor diagram corresponds to an alternating emf source connected to an inductor.
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