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Engineering, 18.04.2020 01:46 mickimlvn6128

A step-down transformer is used for recharging the batteries of portable electronic devices. The turns ratio N2/N1 for a particular transformer used in a DVD player is 1:12. When used with 120-V (rms) household service, the transformer draws an rms current of 33.5 mA from the house outlet.

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