Magnetism and Electromagnetism Materials subjected to rapid reversal of magnetism should have High permeability and low hysteresis loss High co-ercivity and low density High co-ercivity and high retentivity Large area of B-H loop High permeability and low hysteresis loss High co-ercivity and low density High co-ercivity and high retentivity Large area of B-H loop ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism For which of the following materials the saturation value is the highest? Diamagnetic materials Ferrites Paramagnetic materials Ferromagnetic materials Diamagnetic materials Ferrites Paramagnetic materials Ferromagnetic materials ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism When the north poles of two bar magnets are brought close together, there will be no force a force of repulsion a force of attraction a downward force no force a force of repulsion a force of attraction a downward force ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Hysteresis loop in case of magnetically hard materials is more in shape as compared to magnetically soft materials. triangular circular None of the listed here rectangular triangular circular None of the listed here rectangular ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism A magnetic field exists around Moving Charges Aluminium Iron Copper Moving Charges Aluminium Iron Copper ANSWER DOWNLOAD EXAMIANS APP
Magnetism and Electromagnetism Paramagnetic materials have relative permeability slightly less than unity equal to that ferromagnetic mate rials slightly more than unity equal to unity slightly less than unity equal to that ferromagnetic mate rials slightly more than unity equal to unity ANSWER DOWNLOAD EXAMIANS APP
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