ElectroMagnetic InductionHard
Question
In order to avoid eddy currents in the core of a transformer :-
Options
A.The number of turns in the secondary coil is made considerably large
B.A laminated core is used
C.A step down transformer is used
D.A high voltage alternating weak current is used
More ElectroMagnetic Induction Questions
Two coils are made of copper wires of same length In the first coil the number of turns is 3n and radius is r. In the se...A coil of inductance 300 mH and resistance 2Ω is connected to a source of voltage 2V. The current reaches half of i...Earth′s surface is a conductor with a uniform surface charge density s. It rotates about its axis with angular vel...A rectangular loop of sides ′a′ and ′b′ is placed in xy plane. A very long wire is also placed i...The given figure represents the phosphor diagram of a series LCR circuit connected to an ac source. At the instant tR...