If R2 is the resistance of secondary winding of the transformer and K is the transformation ratio then the equivalent secondary resistance referred to primary will be___________?

Related Mcqs:

In a transformer routine efficiency depends upon_____________?

A. supply frequency B. load current C. power factor of load D. both B. and (c)...

Harmonics in transformer result in___________?

A. increased core losses B. increased I2R losses C. magnetic interference with communication circuits D. all of the above...

If the supply frequency to the transformer is increased,”the iron loss will__________?

A. not change B. decrease C. increase D. any of the above...

The efficiencies of transformers compared with that of electric motors of the same power are____________?

A. about the same B. much smaller C. much higher D. somewhat smaller E. none of the above...

Which of the following statements regarding an idel single-phase transformer having a turn ratio of 1 : 2 and drawing a current of 10 A from 200 V A.C. supply is incorrect?

A. Its secondary current is 5 A B. Its secondary voltage is 400 V C. Its rating is 2 kVA D. Its secondary current is 20 A E. It is a step-up transformer...