Magnetism and Electromagnetism What is the magneto-motive force (mmf) of a wire with 8 turns carrying three amperes of current? 2,400 At 24 At 2.4 At 240 At 2,400 At 24 At 2.4 At 240 At 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 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 The lowest permeability of the iron rod The permeability almost in non-magnetised state ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of a magnetic field within a magnet is from north to south front to back back to front from south to north from north to south front to back back to front from south to north ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Air gap has_______eluctance as compared to iron or steel path little zero lower higher little zero lower higher ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism How does the magnetic compass needle behave in a magnetic field? It assures a position right angle to magnetic field It starts rotating It assures a position which follows a line of magnetic flux None of the listed here It assures a position right angle to magnetic field It starts rotating It assures a position which follows a line of magnetic flux None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following materials are diamagnetic? Iron Silver Silver and copper Copper Iron Silver Silver and copper Copper ANSWER DOWNLOAD EXAMIANS APP
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