Engineering Materials in EE In order to minimise loss due to hysteresis, the magnetic material should have high resistivity. high retentivity. low hysteresis coefficient. large B-H loop area. high resistivity. high retentivity. low hysteresis coefficient. large B-H loop area. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The magnetisation and applied field in ferromagnetic materials are related parabolically. linearly. non linearly. sinusoidally. parabolically. linearly. non linearly. sinusoidally. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Temporary magnets are used in which of the following ? Motors. Generators. All of these. Hoist. Motors. Generators. All of these. Hoist. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Positive magnetostriction exists when none of above. dipoles are attract each other. dipoles are repel other. both are correct. none of above. dipoles are attract each other. dipoles are repel other. both are correct. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The materials which exhibit the same elastic properties in all directions are called visco elastic. isotropic. inelastic. isentropic. visco elastic. isotropic. inelastic. isentropic. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following gives materials in order of decreasing values of permeability? Permalloy, nickel, air, water. Pure iron, silicon iron, aluminium, bismuth. Cobalt, nickel, aluminium, iron. Silver, copper, aluminium, iron. Permalloy, nickel, air, water. Pure iron, silicon iron, aluminium, bismuth. Cobalt, nickel, aluminium, iron. Silver, copper, aluminium, iron. ANSWER DOWNLOAD EXAMIANS APP
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