Magnetism and Electromagnetism Which of the following is a ferromagnetic material? Aluminium Tungsten Copper Nickel Aluminium Tungsten Copper Nickel ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For a given wirewound core, an increase in current through the coil causes no change in flux density reverses the flux lines decreases the flux density increases the flux density causes no change in flux density reverses the flux lines decreases the flux density increases the flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A certain amount of current flows through a ring shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil? Remains same Increases Decreases First increases and then decreases depending on the depth of iron in¬sertion Remains same Increases Decreases First increases and then decreases depending on the depth of iron in¬sertion 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? 10 AT 16 AT 8 AT 4 AT 10 AT 16 AT 8 AT 4 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The ratio of intensity of magnetisation to the magnetisation force is known as Relatice permeability None of the listed here Susceptibility Flux density Relatice permeability None of the listed here Susceptibility Flux density ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magnitude and the direction of force per 1.1m length of a pair of conductors of a direct current linecarrying 10 amperes and spaced 100 mm apart ? 22 x 10"8 N 22 x 10-6 N 22 x 10"5 N 22 x 10"7 N 22 x 10"8 N 22 x 10-6 N 22 x 10"5 N 22 x 10"7 N ANSWER DOWNLOAD EXAMIANS APP
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