Magnetism and Electromagnetism Susceptibility is positive for ferromagnetic substances non-magnetic substances None of these diamagnetic substances ferromagnetic substances non-magnetic substances None of these diamagnetic substances 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 ? 63380 N/Wb 6338 N/Wb 63.38 N/Wb 633.8 N/Wb 63380 N/Wb 6338 N/Wb 63.38 N/Wb 633.8 N/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The relative permeability of materials is not constant. Diamagnetic None of the listed here Ferromagnetic Paramagnetic Diamagnetic None of the listed here Ferromagnetic Paramagnetic ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wirewound core, an increase in current through the coil decreases the flux density causes no change in flux density reverses the flux lines increases the flux density decreases the flux density causes no change in flux density reverses the flux lines increases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage increases remains constant reaches zero decreases increases remains constant reaches zero decreases ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the current through the coil of an electromagnet reverses, the magnetic field expands direction of the magnetic field reverses magnetic field collapses direction of the magnetic field remains unchanged magnetic field expands direction of the magnetic field reverses magnetic field collapses direction of the magnetic field remains unchanged ANSWER DOWNLOAD EXAMIANS APP
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