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23.7 Exercise 4

Avg difficulty 2.5

A plug-in transformer, like that in the figure, supplies 9.00 V to a video game system. (a) How many turns are in its secondary coil, if its input voltage is 120 V and the primary coil has 400 turns? (b) What is its input current when its output is 1.30 A?

OpenStax College Physics 2e, 23.7 Transformers, exercise 4

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.