Magnetism and Electromagnetism What is the reluctance of a material that has a length of 0.07 m, a cross-sectional area of 0.014 m2, and a permeability of 4,500 Wb/At × m? 111 At/Wb 11 At/Wb 1 At/Wb 1111 At/Wb 111 At/Wb 11 At/Wb 1 At/Wb 1111 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The most effective and quickest may of making a magnet from soft iron is by Placing it inside a coil carrying current Rubbing with another magnet Induction The use of permanent magnet Placing it inside a coil carrying current Rubbing with another magnet Induction The use of permanent magnet ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Susceptibility is positive for None of these non-magnetic substances diamagnetic substances ferromagnetic substances None of these non-magnetic substances diamagnetic substances ferromagnetic substances ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The ratio of intensity of magnetisation to the magnetisation force is known as Susceptibility Flux density Relatice permeability None of the listed here Susceptibility Flux density Relatice permeability None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the mmf of a wire with 8 turns carrying three amperes of current? 240 AT 0.24 AT 24 AT 2.4 AT 240 AT 0.24 AT 24 AT 2.4 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When an iron piece is placed in a magnetic field the iron piece will break the magnetic lines of force will bend away from their usual paths in order to pass through the piece the magnetic lines of force will bend away from their usual paths in order to go away from the piece the magnetic field will not be affected the iron piece will break the magnetic lines of force will bend away from their usual paths in order to pass through the piece the magnetic lines of force will bend away from their usual paths in order to go away from the piece the magnetic field will not be affected ANSWER DOWNLOAD EXAMIANS APP
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