Magnetism and Electromagnetism The magnetomotive force is The passage of magnetic field through an exciting coil The sum of all currents embraced by one line of magnetic field The voltage across the two ends of exciting coil The flow of an electric current The passage of magnetic field through an exciting coil The sum of all currents embraced by one line of magnetic field The voltage across the two ends of exciting coil The flow of an electric current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m? 8 AT 4 AT 10 AT 16 AT 8 AT 4 AT 10 AT 16 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The ability of a material to remain magnetized after removal of the magnetizing force is known as retentivity reluctance permeability hysteresis retentivity reluctance permeability hysteresis ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Magnetising steel is normals difficult because it has low permeability it has high specific gravity it has high permeability it corrodes easily it has low permeability it has high specific gravity it has high permeability it corrodes easily ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current? 240 At 2,400 At 24 At 2.4 At 240 At 2,400 At 24 At 2.4 At ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic materials exhibit the property of magnetisation because of spin of electrons either of these orbital motion of electrons spin of nucleus spin of electrons either of these orbital motion of electrons spin of nucleus ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS