Engineering Materials in EE The temperature beyond which substances lose their ferroelectric properties, is known as inversion temperature. conversion temperature. curie temperature. critical temperature. inversion temperature. conversion temperature. curie temperature. critical temperature. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Choose the best suitable of Diamagnetic : Paramagnetic:: Water : Air. Nickel : Cobalt. Permalloy : Super-alloy. Iron : Steel. Water : Air. Nickel : Cobalt. Permalloy : Super-alloy. Iron : Steel. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The core of a transformer for microwave frequency should be made of iron. silicon. silicon carbide. ferrites. iron. silicon. silicon carbide. ferrites. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Why diamond is very hard ? Because of large cohesive energy Because of high melting point None of these Because of covalent solid Because of large cohesive energy Because of high melting point None of these Because of covalent solid ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Positive magnetostriction exists when none of above. dipoles are attract each other. both are correct. dipoles are repel other. none of above. dipoles are attract each other. both are correct. dipoles are repel other. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A ferrite core has low eddy current loss than an iron core because / >ferrites have high resistance. ferrites have low permeability. ferrites have hig hysteresis. ferrites are magnetic. / >ferrites have high resistance. ferrites have low permeability. ferrites have hig hysteresis. ferrites are magnetic. ANSWER DOWNLOAD EXAMIANS APP
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