A source of ac voltage V = Vo cos cot delivers energy to a consumer by means

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A source of ac voltage V = Vo cos cot delivers energy to a consumer by means of a long straight coaxial cable with negligible active resistance. The current in the circuit varies as I = Io cos wt = φ). Find the time-averaged energy flux through the cross-section of the cable. The sheath is thin.
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Essential University Physics

ISBN: 978-0321976420

3rd Edition Volume 2

Authors: Richard Wolfsonby

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