A step-down transformer reduces the voltage of a P transmission lio...

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A step-down transformer reduces the voltage of a
P transmission lion from \( 2200 \mathrm{~V} \) to \( 220 \mathrm{~V} \). The power

W delivered by it is \( 880 \mathrm{~W} \) and its efficiency is \( 88 \% \). The input current is:
(1) \( 4.65 \mathrm{~mA} \)
(2) \( 0.045 \mathrm{~A} \)
(3) \( 0.45 \mathrm{~A} \)
(4) \( 4.65 \mathrm{~A} \)
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