Magnetism and Electromagnetism Ferrites are a sub-group of Ferro magnetic material Non-magnetic materials Ferri-magnetic material Paramagnetic material Ferro magnetic material Non-magnetic materials Ferri-magnetic material Paramagnetic material ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is 2,000 V 1,000 V 3,125 V 31.25 V 2,000 V 1,000 V 3,125 V 31.25 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the flux density when the flux is 5.5 Wb and the cross-sectional area is 6 × 10–3 m2? 9.7 T 917 T 91.7 T 91 T 9.7 T 917 T 91.7 T 91 T ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When an iron piece is placed in a magnetic field the iron piece will break the magnetic lines of force will bend away from their usual paths in order to go away from the piece the magnetic lines of force will bend away from their usual paths in order to pass through the piece the magnetic field will not be affected the iron piece will break the magnetic lines of force will bend away from their usual paths in order to go away from the piece the magnetic lines of force will bend away from their usual paths in order to pass through the piece the magnetic field will not be affected ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The initial permeability of an iron rod is The permeability almost in non-magnetised state The permeability at the end of the iron rod The highest permeability of the iron rod The lowest permeability of the iron rod The permeability almost in non-magnetised state The permeability at the end of the iron rod The highest permeability of the iron rod The lowest permeability of the iron rod ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetism of a magnet can be destroyed by Heating All of the listed here By inductive action of another magnet Hammering Heating All of the listed here By inductive action of another magnet Hammering ANSWER DOWNLOAD EXAMIANS APP
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