Magnetism and Electromagnetism The unit of flux is the same as that of Resistance Reluctance Pole strength Permanance Resistance Reluctance Pole strength Permanance ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnetomotive force in a 75-turn coil of wire when there are 4 A of current through it? 18.75 At 300 At 187 At 30 At 18.75 At 300 At 187 At 30 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A 300 mm long conductor is carrying a current of 10 A and is situated at right angles to a magnetic field having a flux density of 0.8 T ; the force on the conductor will be 2.4 N 24 N 0.24 N 240 N 2.4 N 24 N 0.24 N 240 N ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic materials exhibit the property of magnetisation because of either of these orbital motion of electrons spin of electrons spin of nucleus either of these orbital motion of electrons spin of electrons spin of nucleus ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The ability of a material to remain magnetized after removal of the magnetizing force is known as reluctance permeability retentivity hysteresis reluctance permeability retentivity hysteresis ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wire-wound core, an increase in current through the coil Causes no change in flux density Increases the flux density Decreases the flux density Reverses the flux lines Causes no change in flux density Increases the flux density Decreases the flux density Reverses the flux lines ANSWER DOWNLOAD EXAMIANS APP
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