The battery charger for an MP3 player contains a step-down transformer with a turns ratio of 1:32,

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The battery charger for an MP3 player contains a step-down transformer with a turns ratio of 1:32, so that the voltage of 120 V available at a wall socket can be used to charge the battery pack or operate the player. What voltage does the secondary coil of the transformer provide?
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Physics

ISBN: 978-1118486894

10th edition

Authors: David Young, Shane Stadler

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