Two coils have inductances of 8 mH and 18 mH and a co-efficient of coupling of 0.5. If the two coils are connected in series aiding, the total inductance will be______________?

Related Mcqs:

Air-core coils are practically free from______________?

A. hysteresis losses B. eddy current losses C. both (A) and (B) D. none of the above...

The core of a coil has a length of 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will be_____________?

A. 3 mH B. 12 mH C. 24mH D. 48mH...

A coil with negligible resistance has 50V across it with 10 mA. The inductive reactance is_____________?

A. 50 ohms B. 500 ohms C. 1000 ohms D. 5000 ohms...

Which of the following uses electric energy and does not convert it into any other form ?

A. transformer B. motor C. D.C generator D. A.C generator...

Lagging of changes in the magnetization of a substance behind changes in the magnetic field as the magnetic field is varied is known as magnetic_____________?

A. Retaintivity B. Permeability C. Flux D. Hysteresis...