Magnetism and Electromagnetism The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is 3,125 V 31.25 V 1,000 V 2,000 V 3,125 V 31.25 V 1,000 V 2,000 V ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit for permeability is Wb At/Wb At/m Wb/At × m Wb At/Wb At/m Wb/At × m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The initial permeability of an iron rod is The lowest permeability of the iron rod The permeability almost in non-magnetised state The permeability at the end of the iron rod The highest permeability of the iron rod The lowest permeability of the iron rod The permeability almost in non-magnetised state The permeability at the end of the iron rod The highest permeability of the iron rod ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is From one end of the magnet to another From south pole to north pole From north pole to south pole None of the listed here From one end of the magnet to another From south pole to north pole From north pole to south pole None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Air gap has_______eluctance as compared to iron or steel path lower higher zero little lower higher zero little ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A basic one-loop dc generator is rotated at 90 rev/s. How many times each second does the dc output voltage peak (reach maximum)? 270 90 360 180 270 90 360 180 ANSWER DOWNLOAD EXAMIANS APP
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