A model-train transformer plugs into 120-V ac and draws 0.35 A while supplying 7.5 A to the

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A model-train transformer plugs into 120-V ac and draws 0.35 A while supplying 7.5 A to the train.
(a) What voltage is present across the tracks?
(b) Is the transformer step-up or step-down?

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Introduction to Electrodynamics

ISBN: 978-8120316010

3rd Edition

Authors: David J. Griffiths

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Question Posted: May 01, 2010 01:08 AM

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A model-train transformer plugs into 120-V ac and draws 0.35 A while supplying 7.5 A to the

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a Use Eqs 216 and 217 to r...View the full answer

Introduction to Electrodynamics

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