ElectroMagnetic InductionHard
Question
In a transformer 220A.C. voltage is increased to 2200 volts. If the number of turns in the secondary are 2000, then the number of turns in the primary will be: -
Options
A.200
B.100
C.50
D.20
More ElectroMagnetic Induction Questions
The value of magnetic susceptibility for super-conductors is :-...A bar magnet is dropped into a vertical copper tube, considering the air resistance as negligible, the magnet acquired a...The mass of a specimen of a ferromagnetic material is 0.6 kg. and its density is 7.8 × 103 kg/m3. If the area of hy...On reducing 2 ampere current in the primary to zero in 0.01 second, an emf of 1000 volts is induced in the Secondary coi...When a piece of a ferromagnetic substance is put in a uniform magnetic field. Flux density inside it is four times the f...