The power brick for the authors laptop computer has a power


The power brick for the author's laptop computer has a power rating of 90 W. It uses a step-down transformer to convert the AC voltage from a wall socket (Vrms = 120 V) to a value near 12 V.

(a) What is the rms current in the input coil of the transformer?

________A

(b) What is the rms current in the output coil of the transformer?

________A

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Physics: The power brick for the authors laptop computer has a power
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