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? 30 AT 3 AT 0.3 AT 300 AT 30 AT 3 AT 0.3 AT 300 AT ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The relative permeability of materials is not constant. Paramagnetic None of the listed here Ferromagnetic Diamagnetic Paramagnetic None of the listed here Ferromagnetic Diamagnetic ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Strength of an electromagnet can be increased by Increasing the cross-sectional area All of the listed here Increasing the number of turns Increasing current supply Increasing the cross-sectional area All of the listed here Increasing the number of turns Increasing current supply ANSWER DOWNLOAD EXAMIANS APP
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 63.38 N/Wb 6338 N/Wb 633.8 N/Wb 63380 N/Wb 63.38 N/Wb 6338 N/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Gilbert is a unit of permittivity magnetomotive force electromotive force conductance permittivity magnetomotive force electromotive force conductance ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The bar magnet has Both dipole and monopole moment Dipole moment None of the listed here Monopole moment Both dipole and monopole moment Dipole moment None of the listed here Monopole moment ANSWER DOWNLOAD EXAMIANS APP
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