Magnetism and Electromagnetism The unit for permeability is Wb/At × m At/Wb Wb At/m Wb/At × m At/Wb Wb At/m ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The induced voltage across a stationary conductor in a stationary magnetic field is zero reversed in polarity decreased increased zero reversed in polarity decreased increased ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The initial permeability of an iron rod is The lowest permeability of the iron rod The highest permeability of the iron rod The permeability at the end of the iron rod The permeability almost in non-magnetised state The lowest permeability of the iron rod The highest permeability of the iron rod The permeability at the end of the iron rod The permeability almost in non-magnetised state ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is expected to have the maximum permeability ? Copper Ebolite Brass Zinc Copper Ebolite Brass Zinc ANSWER DOWNLOAD EXAMIANS APP
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? 300 AT 3 AT 30 AT 0.3 AT 300 AT 3 AT 30 AT 0.3 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will Increase Remain Constant Decrease Be excessive Increase Remain Constant Decrease Be excessive ANSWER DOWNLOAD EXAMIANS APP
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