Magnetism and Electromagnetism An electromagnetic field exists only when there is an increasing current current decreasing current voltage an increasing current current decreasing current voltage ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For which of the following materials the saturation value is the highest? Ferromagnetic materials Paramagnetic materials Ferrites Diamagnetic materials Ferromagnetic materials Paramagnetic materials Ferrites Diamagnetic materials ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For which of the following materials the net magnetic moment should be zero? antiferrimagnetic materials diamagnetic materials ferrimagnetic materials antiferromagnetic materials antiferrimagnetic materials diamagnetic materials ferrimagnetic materials antiferromagnetic materials ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Air gap has_______eluctance as compared to iron or steel path little higher zero lower little higher zero lower ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is 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 From south pole to north pole 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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