Engineering Materials in EE Which of the following is the least desired property in magnetic materials for electrical engineering applications ? Large hysteresis loop. High electrical resistivity. All of these High magnetic permeability. Large hysteresis loop. High electrical resistivity. All of these High magnetic permeability. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Magnetic recording tape is most commonly made from silicon-iron. small particles of iron. iron-dust. ferric-oxide. silicon-iron. small particles of iron. iron-dust. ferric-oxide. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In electrical machines the material preferred for pole shoes of electromagnets is aluminium. copper. lead. pure iron. aluminium. copper. lead. pure iron. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE What is the value of dielectric constant of air? 0. Less than 1 1. none of these. 0. Less than 1 1. none of these. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE According to the Bohr model, an electron gains or losses energy only by jumping from one atom to another atom. jumping from one allowed orbit to another. moving faster or slower in an allowed orbit. being completely removed from an atom. jumping from one atom to another atom. jumping from one allowed orbit to another. moving faster or slower in an allowed orbit. being completely removed from an atom. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The electron configuration of copper is none of above. 1s2 , 2s2 2p6, 3s2 3p6 3d9, 4s2. 1s2 , 2s2 2p6, 3s2 3p6 3d8, 4s1 4p 1s2 , 2s2 2p6, 3s2 3p6 3d10, 4s1. none of above. 1s2 , 2s2 2p6, 3s2 3p6 3d9, 4s2. 1s2 , 2s2 2p6, 3s2 3p6 3d8, 4s1 4p 1s2 , 2s2 2p6, 3s2 3p6 3d10, 4s1. ANSWER DOWNLOAD EXAMIANS APP
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