Magnetism and Electromagnetism A square cross-sectional magnet has a pole strength of 1 x 10 Wb and cross sectional area of 20 mm x 20 mm. What is the strength at a distance of 100 mm from the unit pole in air ? 633.8 N/Wb 63380 N/Wb 6338 N/Wb 63.38 N/Wb 633.8 N/Wb 63380 N/Wb 6338 N/Wb 63.38 N/Wb ANSWER DOWNLOAD EXAMIANS APP
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? 11 At/Wb 111 At/Wb 1111 At/Wb 1 At/Wb 11 At/Wb 111 At/Wb 1111 At/Wb 1 At/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetic materials exhibit the property of magnetisation because of orbital motion of electrons spin of electrons either of these spin of nucleus orbital motion of electrons spin of electrons either of these spin of nucleus ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The commonly used material for shielding or screening magnetism is Copper Soft iron Brass Aluminium Copper Soft iron Brass Aluminium ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is proportional to distance between the conductors proportional to X proportional to 7 inversely proportional to I proportional to distance between the conductors proportional to X proportional to 7 inversely proportional to I ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The ratio of intensity of magnetisation to the magnetisation force is known as Flux density Susceptibility Relatice permeability None of the listed here Flux density Susceptibility Relatice permeability None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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