If the secondary coil has Ns turns and the primary Np turns the relation between secondary and primary voltages is given by_____________?

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...

Two coils have self-inductances of 10 H and 2 H, the mutual inductance being zero. If the two coils are connected in series, the total inductance will be_____________?

A. 6 H B. 8 H C. 12 H D. 24 H...

The self-inductance of the coil may be defined as equal to the e.m.f. induced in volts when the current in the circuit changes at the rate of unit Weber turns

A. Yes B. No...

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...

For long distance transmission the transformer used is_____________?

A. Step down B. Input voltage and output voltage remain same C. Step up D. Amplifier is used...