Magnetism and Electromagnetism The unit for permeability is At/m At/Wb Wb Wb/At × m At/m At/Wb Wb Wb/At × m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For which of the following materials the net magnetic moment should be zero? ferrimagnetic materials antiferromagnetic materials antiferrimagnetic materials diamagnetic materials ferrimagnetic materials antiferromagnetic materials antiferrimagnetic materials diamagnetic materials ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A square cross-sectional magnet has a pole strength of 1 x 10 Wb and cross sectional area of 20 mm x 20 mm. What is the strength at a distance of 100 mm from the unit pole in air ? 633.8 N/Wb 63.38 N/Wb 63380 N/Wb 6338 N/Wb 633.8 N/Wb 63.38 N/Wb 63380 N/Wb 6338 N/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetism of a magnet can be destroyed by All of the listed here Hammering By inductive action of another magnet Heating All of the listed here Hammering By inductive action of another magnet Heating ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is From one end of the magnet to another From north pole to south pole None of the listed here From south pole to north pole From one end of the magnet to another From north pole to south pole None of the listed here From south pole to north pole 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 Resistance of the coil Pole strength of the magnet Motion of the magnet Number of turns of the coil Resistance of the coil Pole strength of the magnet Motion of the magnet Number of turns of the coil ANSWER DOWNLOAD EXAMIANS APP
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