Question

A step-down transformer reduces the supply voltage from 220V to 110V and increases the current from 6A to 100A. Then, its efficiency is
1 point
a. 1.2
b. 0.83
c. 0.12
d. 0.9​

Answer 1

Answer:

your correct answer is option (b)

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Answer 2

Answer:

your correct answer is option (b) 0.83