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_____________?

Related Mcqs:

A laminated iron core has reduced eddy-current losses because____________?

A. more wire can be used with less D.C. resistance in coil B. the laminations are insulated from each other C. the magnetic flux is concentrated in the air gap of the core D. the laminations are stacked vertfcally...

Which of the following circuit elements will oppose the change in circuit current ?

A. Capacitance B. Inductance C. Resistance D. All of the above...

The polarity of the induced voltage can be determined by using the left-hand generator rule

A. Yes B. No...

Inductors acts as a short circuit for_______________?

A. AC B. DC C. Both A and B D. none of these...

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...