Magnetism and Electromagnetism Magnetising steel is normals difficult because it has high permeability it has high specific gravity it has low permeability it corrodes easily it has high permeability it has high specific gravity it has low permeability it corrodes easily ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism What is the magneto-motive force in a 75-turn coil of wire when there are 4 A of current through it? 300 AT 30 AT 0.3 AT 3 AT 300 AT 30 AT 0.3 AT 3 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A permanent magnet Attracts ferromagnetic substances and repels all others Attracts all paramagnetic substances and repels others Attracts only ferromagnetic substances Attracts some substances and repels others Attracts ferromagnetic substances and repels all others Attracts all paramagnetic substances and repels others Attracts only ferromagnetic substances Attracts some substances and repels others ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Fleming's left hand rule is used to find Direction of magnetic field due to current carrying conductor Direction of flux in a solenoid Direction of force on a current carrying conductor in a magnetic field Polarity of a magnetic pole Direction of magnetic field due to current carrying conductor Direction of flux in a solenoid Direction of force on a current carrying conductor in a magnetic field Polarity of a magnetic pole ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Two long parallel conductors carry 100 A. If the conductors are separated by 20 mm, the force per meter of length of each conductor will be 0.01 N 0.1 N 100 N 10 N 0.01 N 0.1 N 100 N 10 N ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The stray line of magnetic flux is defined as A line of magnetic flux which does not follow the designed path A line vertical to the flux lines The mean length of a ring shaped coil A line of magnetic flux in a non-uniform field A line of magnetic flux which does not follow the designed path A line vertical to the flux lines The mean length of a ring shaped coil A line of magnetic flux in a non-uniform field ANSWER DOWNLOAD EXAMIANS APP
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