Magnetism and Electromagnetism Materials subjected to rapid reversal of magnetism should have Large area of B-H loop High permeability and low hysteresis loss High co-ercivity and low density High co-ercivity and high retentivity Large area of B-H loop High permeability and low hysteresis loss High co-ercivity and low density High co-ercivity and high retentivity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The materials are a bit inferior conductors of magnetic flux than air. Dielectric Ferromagnetic Diamagnetic None of the listed here Dielectric Ferromagnetic Diamagnetic None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are a sub-group of Paramagnetic material Ferri-magnetic material Non-magnetic materials Ferro magnetic material Paramagnetic material Ferri-magnetic material Non-magnetic materials Ferro magnetic material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The use of permanent magnets is. not made in Energy meters Loud speakers None of the listed here Transformers Energy meters Loud speakers None of the listed here Transformers ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wirewound core, an increase in current through the coil increases the flux density causes no change in flux density reverses the flux lines decreases the flux density increases the flux density causes no change in flux density reverses the flux lines decreases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism In a simple magnetic field the strength of magnet flux increases continuously from initial value to final value decreases continuously from initial value to final value first increases and then decreases till it becomes zero is constant and has same value in energy part of the magnetic field increases continuously from initial value to final value decreases continuously from initial value to final value first increases and then decreases till it becomes zero is constant and has same value in energy part of the magnetic field ANSWER DOWNLOAD EXAMIANS APP
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