Engineering Materials in EE Substance having permeability less than the permeability of free space, are known as bipolar. paramagnetic. diamagnetic. ferromagnetic. bipolar. paramagnetic. diamagnetic. ferromagnetic. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In electrical machines the material preferred for pole shoes of electromagnets is copper. lead. pure iron. aluminium. copper. lead. pure iron. aluminium. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Magnetic recording tape is most commonly made from ferric-oxide. small particles of iron. silicon-iron. iron-dust. ferric-oxide. small particles of iron. silicon-iron. iron-dust. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The permanent magnets are made from which of following materials ? Diamagnetic. Paramagnetic. Soft iron. Ferromagnetic. Diamagnetic. Paramagnetic. Soft iron. Ferromagnetic. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following is the example for piezo-electric material ? Potassium niobate Copper Lead zirconate titanate None of these Potassium niobate Copper Lead zirconate titanate None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE According to the Bohr model, an electron gains or losses energy only by being completely removed from an atom. moving faster or slower in an allowed orbit. jumping from one allowed orbit to another. jumping from one atom to another atom. being completely removed from an atom. moving faster or slower in an allowed orbit. jumping from one allowed orbit to another. jumping from one atom to another atom. ANSWER DOWNLOAD EXAMIANS APP
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