Magnetism and Electromagnetism What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 0.3 AT 30 AT 3 AT 300 AT 0.3 AT 30 AT 3 AT 300 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The unit for permeability is Wb/At × m Wb At/Wb At/m Wb/At × m Wb At/Wb At/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Main causes of noisy solenoid are strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force Both of the listed here uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts None of these strong tendency of fan out of laminations at the end caused by repulsion among magnetic lines of force Both of the listed here uneven bearing surface, caused by dirt or uneven wear between moving and stationary parts None of these ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The materials are a bit inferior conductors of magnetic flux than air. Dielectric None of the listed here Ferromagnetic Diamagnetic Dielectric None of the listed here Ferromagnetic Diamagnetic ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The initial permeability of an iron rod is The permeability at the end of the iron rod The permeability almost in non-magnetised state The highest permeability of the iron rod The lowest permeability of the iron rod The permeability at the end of the iron rod The permeability almost in non-magnetised state The highest permeability of the iron rod The lowest permeability of the iron rod ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The change of cross-sectional area of conductor in magnetic field will affect both of the listed here resistance of conductor reluctance of conductor None of these both of the listed here resistance of conductor reluctance of conductor None of these ANSWER DOWNLOAD EXAMIANS APP
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