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An ideal transformer takes 5 A at 220 V. Its 110 V secondary delivers what current?
A20 A
B2.5 A
C10 A
D5 A
Answer & Solution
Correct answer: C. 10 A
Input power is 1100 W; with no loss the output is also 1100 W, so I = 1100/110 = 10 A.
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