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# A 120 V (rms) power line is connected to the primary of a step-down transformer, with...

A 120 V (rms) power line is connected to the primary of a step-down transformer, with a turn ratio of 12 : 1. The transformer’s secondary is connected to a doorbell, which requires 10.2 W of electric power for its operation. What is the peak instantaneous current in the primary?

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