Magnetism and Electromagnetism Magnetising steel is normals difficult because it has low permeability it has high permeability it corrodes easily it has high specific gravity it has low permeability it has high permeability it corrodes easily it has high specific gravity ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The magnetomotive force is The sum of all currents embraced by one line of magnetic field The flow of an electric current The passage of magnetic field through an exciting coil The voltage across the two ends of exciting coil The sum of all currents embraced by one line of magnetic field The flow of an electric current The passage of magnetic field through an exciting coil The voltage across the two ends of exciting coil ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism In the left hand rule, forefinger always represents current direction of force on the conductor magnetic field Voltage current direction of force on the conductor magnetic field Voltage 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 X inversely proportional to I proportional to distance between the conductors proportional to 7 proportional to X inversely proportional to I proportional to distance between the conductors proportional to 7 ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is decreased, the voltage induced across the coil will Remain same Decreases Increases None of the listed here Remain same Decreases Increases None of the listed here 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"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 22 x 10"8 N 22 x 10-6 N ANSWER DOWNLOAD EXAMIANS APP
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