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  • The efficiency of practical transformer is {where PL = power loss }Option: 1 <img alt="\frac{P_{out}}{P_{out} + P_{L}} \times 10

The efficiency of practical transformer is

{where PL = power loss }

Option: 1

\frac{P_{out}}{P_{out} + P_{L}} \times 100


Option: 2

\frac{P_{out}}{P_{out} - P_{L}} \times 100


Option: 3

\frac{P_{out} + P_{L}}{P_{out}} \times 100


Option: 4

\frac{P_{out} - P_{L}}{P_{out}} \times 100


Answers (1)

best_answer

As we learnt ,

 

practical transformer -

P_{in }= P_{out}+P_{loses}

-

 

 For practical transformer ,

Pin = Pout + Ploss

Now , \eta = \frac{P_{out}}{P_{in}}

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

 

 

Posted by

Pankaj

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