An ideal transformer will have maximum efficiency at a load such that?

Related Mcqs:

Primary winding of a transformer________________?

A. is always a low voltage winding B. is always a high voltage winding C. could either be a low voltage or high voltage winding D. none of the above...

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___________?

A. R2/VK B. R2IK2 C. R22!K2 D. R22/K...

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...

For the parallel operation of single phase transformers it is necessary that they should have___________?

A. same efficiency B. same polarity C. same kVA rating D. same number of turns on the secondary side....

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...