Magnetism and Electromagnetism The magnetomotive force is 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 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 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wire-wound core, an increase in current through the coil Increases the flux density Reverses the flux lines Causes no change in flux density Decreases the flux density Increases the flux density Reverses the flux lines Causes no change in flux density Decreases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When a solenoid is activated, the force that moves the plunger is an electromagnetic field varying voltage a permanent magnetic field a steady current an electromagnetic field varying voltage a permanent magnetic field a steady current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The electromagnet has 50 turns and a current of 1A flows through the coil. If the length of the magnet circuit is 200 mm, what is the magnetic field strength? 2500 AT/m 25 AT/m 250 AT/m 0.25 AT/m 2500 AT/m 25 AT/m 250 AT/m 0.25 AT/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism One telsa is equal to 1 mWb/m² 1 Wb/m² 1 Wb/mm² 1 Wb/m 1 mWb/m² 1 Wb/m² 1 Wb/mm² 1 Wb/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The ratio of intensity of magnetisation to the magnetisation force is known as Susceptibility Flux density Relatice permeability None of the listed here Susceptibility Flux density Relatice permeability None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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