Magnetism and Electromagnetism The magnetic materials exhibit the property of magnetisation because of orbital motion of electrons spin of nucleus either of these spin of electrons orbital motion of electrons spin of nucleus either of these spin of electrons ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism The direction of magnetic lines of force is From south pole to north pole From north pole to south pole None of the listed here From one end of the magnet to another From south pole to north pole From north pole to south pole None of the listed here From one end of the magnet to another ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Which of the following is a vector quantity? Magnetic potential Relalative permeability Flux density Magnetic field intensity Magnetic potential Relalative permeability Flux density Magnetic field intensity 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 ? 63.38 N/Wb 6338 N/Wb 633.8 N/Wb 63380 N/Wb 63.38 N/Wb 6338 N/Wb 633.8 N/Wb 63380 N/Wb ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A material which is slightly repelled by a magnetic field is known as diamagnetic material paramagnetic material ferromagnetic material conducting material diamagnetic material paramagnetic material ferromagnetic material conducting material 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 Be excessive Remain Constant Decrease Increase Be excessive Remain Constant Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
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