Engineering Materials in EE Indicate which of following material does not retain magnetism permanently none of above. soft iron. hardness steel. stainless steel. none of above. soft iron. hardness steel. stainless steel. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following is the example for piezo-electric material ? None of these Potassium niobate Lead zirconate titanate Copper None of these Potassium niobate Lead zirconate titanate Copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE ________ is the most detrimental impurity in the magnetic materials Carbon. Oxygen. Sulphur. Nitrogen. Carbon. Oxygen. Sulphur. Nitrogen. 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 magnetostriction. magnetic expansion. magnetic hysteresis. magneto-calorisation. magnetostriction. magnetic expansion. magnetic hysteresis. magneto-calorisation. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A ferromagnetic core subjected to cycles of magnetisation will exhibit hysteresis when the cycle is alternating. rotating. pulsating. / >(A), (B), and (C) are all correct. alternating. rotating. pulsating. / >(A), (B), and (C) are all correct. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following gives materials in order of decreasing values of permeability? Pure iron, silicon iron, aluminium, bismuth. Cobalt, nickel, aluminium, iron. Permalloy, nickel, air, water. Silver, copper, aluminium, iron. Pure iron, silicon iron, aluminium, bismuth. Cobalt, nickel, aluminium, iron. Permalloy, nickel, air, water. Silver, copper, aluminium, iron. ANSWER DOWNLOAD EXAMIANS APP
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