Magnetism and Electromagnetism A keeper is used to Provide a closed path for flux Restore lost flux Amplify flux Change the direction of magnetic lines Provide a closed path for flux Restore lost flux Amplify flux Change the direction of magnetic lines ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The retentivity of material is useful for the construction of Transformers Non-magnetic substances Permanent magnets Electromagnets Transformers Non-magnetic substances Permanent magnets Electromagnets ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic materials exhibit the property of magnetisation because of spin of nucleus orbital motion of electrons either of these spin of electrons spin of nucleus orbital motion of electrons either of these spin of electrons ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Susceptibility is positive for diamagnetic substances ferromagnetic substances None of these non-magnetic substances diamagnetic substances ferromagnetic substances None of these non-magnetic substances ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What will be the magnetic potential difference across the air gap of 2 cm length in magnetic field of 200 AT/m? 8 AT 16 AT 4 AT 10 AT 8 AT 16 AT 4 AT 10 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The ratio of intensity of magnetisation to the magnetisation force is known as Relatice permeability Flux density None of the listed here Susceptibility Relatice permeability Flux density None of the listed here Susceptibility ANSWER DOWNLOAD EXAMIANS APP
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