Physics, asked by SamratYash3806, 9 months ago

A step down transformer reduces 220 V to 110 V. The primary
draws 5 ampere of current and secondary supplies 9 ampere.
The efficiency of transformer is
(a) 20% (b) 44% (c) 90% (d) 100%

Answers

Answered by hasini11449
0

Correct option (C) 90%

Explanation: 

In the attachment.....

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