Engineering Materials in EE Which of the following gives materials in order of decreasing values of permeability? Silver, copper, aluminium, iron. 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. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A degaussing is the process of remagnetising metallic parts. demagnetising metallic parts. removal of magnetic impurities. removing gases from materials. remagnetising metallic parts. demagnetising metallic parts. removal of magnetic impurities. removing gases from materials. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE When a ferromagnetic substance is magnetized small changes in dimensions occur. Such a phenomenon is known as magnetic expansion. magnetostriction. magnetic hysteresis. magneto-calorisation. magnetic expansion. magnetostriction. magnetic hysteresis. magneto-calorisation. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Why diamond is very hard ? Because of covalent solid None of these Because of high melting point Because of large cohesive energy Because of covalent solid None of these Because of high melting point Because of large cohesive energy ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Materials having a high dielectric constant, which is non-linear, are known as elastomers. hard die-electrics. ferroelectric materials. super die-electrics. elastomers. hard die-electrics. ferroelectric materials. super die-electrics. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Permanent magnets are used in motors. all of above. generators. loud speakers. motors. all of above. generators. loud speakers. ANSWER DOWNLOAD EXAMIANS APP
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