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  • The efficiency of practical transformer when <img alt="P_{out}=80W\: \: and\: \: P_{loss}=140W" src="https://learn.careers360.com/latex-image/?P_%7Bout%7D%3D80W%5C%3A%20%5C%3A%20and%5C%3A%20%5

The efficiency of practical transformer when P_{out}=80W\: \: and\: \: P_{loss}=140W

Option: 1

46.63%


Option: 2

23.14%


Option: 3

36.36%


Option: 4

18.21%


Answers (1)

best_answer

As we learnt

 

practical transformer -

 

\eta % = \frac{P_{out}}{P_{in}}\times 100

-

 

 

Efficiency

\eta % = \frac{P_{out}}{P_{out}+P_{in}}\times 100

        =\frac{80}{220}*100

\eta % =36.36\%

Posted by

Anam Khan

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