Magnetism and Electromagnetism When a solenoid is activated, the force that moves the plunger is varying voltage an electromagnetic field a permanent magnetic field a steady current varying voltage an electromagnetic field a permanent magnetic field a steady current ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism One telsa is equal to 1 Wb/m 1 Wb/mm² 1 mWb/m² 1 Wb/m² 1 Wb/m 1 Wb/mm² 1 mWb/m² 1 Wb/m² 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 Decreases the flux density Causes no change in flux density Increases the flux density Reverses the flux lines Decreases the flux density Causes no change in flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism There is 900 mA of current through a wire with 40 turns. What is the reluctance of the circuit if the flux is 400 Wb? 9,000 At/Wb 14,400 At/Wb 1,440 At/Wb 90,000 At/Wb 9,000 At/Wb 14,400 At/Wb 1,440 At/Wb 90,000 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the mmf of a wire with 8 turns carrying three amperes of current? 240 AT 2.4 AT 24 AT 0.24 AT 240 AT 2.4 AT 24 AT 0.24 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The uniform magnetic field is The field in which all lines of magnetic flux are parallel and equidistant None of the listed here The field of a set of parallel conductors The field of a single conductor The field in which all lines of magnetic flux are parallel and equidistant None of the listed here The field of a set of parallel conductors The field of a single conductor ANSWER DOWNLOAD EXAMIANS APP
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