A transformer is to be used to provide power for a computer, Physics

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A transformer is to be used to provide power for a computer

A transformer is to be used to provide power for a computer disk drive that needs 6.4 V (rms) instead of the 120 V (rms) from the wall outlet. The number of turns in the primary is 410, and it delivers 500 mA (the secondary current) at an output voltage of 6.4 V (rms). Please show all steps and I need as precise numbers as possible.Thanks.

(a) Find the current in the primary.

mA

(b) Find the number of turns in the secondary.

turns

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