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
Engineering Materials in EE ________ is the most detrimental impurity in the magnetic materials Nitrogen. Sulphur. Oxygen. Carbon. Nitrogen. Sulphur. Oxygen. Carbon. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In electrical machines the material preferred for pole shoes of electromagnets is pure iron. aluminium. lead. copper. pure iron. aluminium. lead. copper. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A ferromagnetic core subjected to cycles of magnetisation will exhibit hysteresis when the cycle is / >(A), (B), and (C) are all correct. rotating. pulsating. alternating. / >(A), (B), and (C) are all correct. rotating. pulsating. alternating. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The dielectric strength of ferroelectric materials depends to a large extent on area of hysteresis loop for the material. presence of magnetic materials in the vicinity. intensity of electric field. frequency of applied voltage. area of hysteresis loop for the material. presence of magnetic materials in the vicinity. intensity of electric field. frequency of applied voltage. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE How many classes of insulating materials are there? 5. 6. 7. 8. 5. 6. 7. 8. ANSWER DOWNLOAD EXAMIANS APP
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