A set-up transformer is designed to
operate from a 25v supply. If the transformer
is 80% efficient, determine the current in the
primary coil when the output terminals are
not connected to 240v 100w lamp
A. 5.0A
B. 4 0A
C. 2.5A
D. 2.0A?
3 Answers Available
Asked by Brown SHUGA💓 on 19th October, 2020
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