Magnetism and Electromagnetism The direction of magnetic lines of force is From south pole to north pole From north pole to south pole None of the listed here From one end of the magnet to another From south pole to north pole From north pole to south pole None of the listed here From one end of the magnet to another ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Materials subjected to rapid reversal of magnetism should have High permeability and low hysteresis loss Large area of B-H loop High co-ercivity and high retentivity High co-ercivity and low density High permeability and low hysteresis loss Large area of B-H loop High co-ercivity and high retentivity High co-ercivity and low density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be 2M M/4 M/2 M 2M M/4 M/2 M ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 100 At 150 At 300 At 200 At 100 At 150 At 300 At 200 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The relative permeability is less than unity is case of Paramagnetic material Diamagnetic material Ferromagnetic material Ferrits Paramagnetic material Diamagnetic material Ferromagnetic material Ferrits ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit for permeability is Wb At/m Wb/At × m At/Wb Wb At/m Wb/At × m At/Wb ANSWER DOWNLOAD EXAMIANS APP
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