Magnetism and Electromagnetism In a simple magnetic field the strength of magnet flux decreases continuously from initial value to final value first increases and then decreases till it becomes zero increases continuously from initial value to final value is constant and has same value in energy part of the magnetic field decreases continuously from initial value to final value first increases and then decreases till it becomes zero increases continuously from initial value to final value is constant and has same value in energy part of the magnetic field 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 3,125 V 31.25 V 1,000 V 2,000 V 3,125 V 31.25 V 1,000 V 2,000 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Ferrites are materials. Paramagnetic Diamagnetic Ferromagnetic None of the listed here Paramagnetic Diamagnetic Ferromagnetic None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A keeper is used to Amplify flux Change the direction of magnetic lines Restore lost flux Provide a closed path for flux Amplify flux Change the direction of magnetic lines Restore lost flux Provide a closed path for flux ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetism left in the iron after exciting field has been removed is known as residual magnetism permeance susceptance reluctance residual magnetism permeance susceptance reluctance ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is the unit of magnetic flux density? Tesla None of the listed here Weber Lumens Tesla None of the listed here Weber Lumens ANSWER DOWNLOAD EXAMIANS APP
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