Helical coils can be used on___________________?

Related Mcqs:

The dielectric strength of transformer oil is expected to be______________?

A. lkV B. 33 kV C. 100 kV D. 330 kV...

A transformer transforms__________________?

A. voltage B. current C. power D. frequency...

The noise resulting from vibrations of laminations set by magnetic forces, is termed as_________________?

A. magnetostrication B. boo C. hum D. zoom...

The magnetising current of a transformer is usually small because it has___________?

A. small air gap B. large leakage flux C. laminated silicon steel core D. fewer rotating parts...

The secondary winding of which of the following transformers is always kept closed?

A. Step-up transformer B. Step-down transformer C. Potential transformer D. Current transformer...