At t = 0, an emf of 500 V is applied to a coil that has an

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At t = 0, an emf of 500 V is applied to a coil that has an inductance of 0.800 H and a resistance of 30.0 Ω.
(a) Find the energy stored in the magnetic field when the current reaches half its maximum value.
(b) After the emf is connected, how long does it take the current to reach this value?
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Engineering Electromagnetics

ISBN: 978-0073380667

8th edition

Authors: William H. Hayt, John A.Buck

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