Magnetism and Electromagnetism What is the magnetomotive force in a 75-turn coil of wire when there are 4 A of current through it? 187 At 30 At 18.75 At 300 At 187 At 30 At 18.75 At 300 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The stray line of magnetic flux is defined as The mean length of a ring shaped coil A line of magnetic flux in a non-uniform field A line of magnetic flux which does not follow the designed path A line vertical to the flux lines The mean length of a ring shaped coil A line of magnetic flux in a non-uniform field A line of magnetic flux which does not follow the designed path A line vertical to the flux lines ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing current supply Increasing the cross-sectional area All of the listed here Increasing the number of turns Increasing current supply Increasing the cross-sectional area All of the listed here Increasing the number of turns 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 The ratio of intensity of magnetisation to the magnetisation force is known as Susceptibility Relatice permeability Flux density None of the listed here Susceptibility Relatice permeability Flux density None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is From south pole to north pole None of the listed here From north pole to south pole From one end of the magnet to another From south pole to north pole None of the listed here From north pole to south pole From one end of the magnet to another ANSWER DOWNLOAD EXAMIANS APP
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