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A step down transformer is used to reduc...

A step down transformer is used to reduce the main supply of 200 V to 11 V. If the primary draws a current of 5 A and the secondary 90 A, what is the efficiency of the transformer ?

A

`90%`

B

`100%`

C

`211%`

D

`150%`

Text Solution

Verified by Experts

The correct Answer is:
a
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