1.

What is the transformation ratio in transformer? 

Answer»

Equation for transformation ratio is, 

E2/E1 = N2/N1 = k 

k = >1 in step up transformer, where secondary turns are more and thus voltage is more to reduce the transmission current. 

k = <1 in step down transformer, where secondary turns are less than primary and low voltage for consumer use.

If we include the current in transformation ration the equation is, 

E2/E1 = N2/N1 = I1/I2 = k 



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