Magnetism and Electromagnetism Magnetising steel is normals difficult because it has high permeability it corrodes easily it has high specific gravity it has low permeability it has high permeability it corrodes easily it has high specific gravity it has low permeability ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wire-wound core, an increase in current through the coil Causes no change in flux density Decreases the flux density Increases the flux density Reverses the flux lines Causes no change in flux density Decreases the flux density Increases the flux density Reverses the flux lines ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will Decreases None of the listed here Remain same Increases Decreases None of the listed here Remain same Increases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When a magnet is in motion relative to a coil the induced e.m.f. does not depend upon Pole strength of the magnet Resistance of the coil Number of turns of the coil Motion of the magnet Pole strength of the magnet Resistance of the coil Number of turns of the coil Motion of the magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetomotive force is The voltage across the two ends of exciting coil The passage of magnetic field through an exciting coil The sum of all currents embraced by one line of magnetic field The flow of an electric current The voltage across the two ends of exciting coil The passage of magnetic field through an exciting coil The sum of all currents embraced by one line of magnetic field The flow of an electric current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism One telsa is equal to 1 Wb/m² 1 Wb/mm² 1 Wb/m 1 mWb/m² 1 Wb/m² 1 Wb/mm² 1 Wb/m 1 mWb/m² ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS