Physics, 28.11.2019 06:31 itskarmaboo

The "power cube" transformer for a portable cd player has an output of 6.9 v and 600 ma (both rms) when plugged into a 120 v outlet. a. if the primary coil has 400 turns of wire, how many turns are on the secondary coil? b. what is the peak current in the primary coil?

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