The power cube transformer for a portable cd player has an


The "power cube" transformer for a portable CD player has an output of 4.5 V and 550 mA (both rms) when plugged into a 120 V/60 Hz outlet.

Part A) If the primary coil has 1250 turns of wire, how many turns are on the secondary coil?

Part B) What is the peak current in the primary coil?

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Physics: The power cube transformer for a portable cd player has an
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