Engineering Materials in EE Which of the following is the least desired property in magnetic materials for electrical engineering applications ? All of these High magnetic permeability. Large hysteresis loop. High electrical resistivity. All of these High magnetic permeability. Large hysteresis loop. High electrical resistivity. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE According to the Bohr model, an electron gains or losses energy only by jumping from one allowed orbit to another. moving faster or slower in an allowed orbit. jumping from one atom to another atom. being completely removed from an atom. jumping from one allowed orbit to another. moving faster or slower in an allowed orbit. jumping from one atom to another atom. being completely removed from an atom. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The Bohr model of the atom had some made-up rules without explanations. explained the color lines in the hydrogen spectrum. could not explain the line spectrum of atoms larger than hydrogen. All of these had some made-up rules without explanations. explained the color lines in the hydrogen spectrum. could not explain the line spectrum of atoms larger than hydrogen. All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Permanent magnets are used in loud speakers. generators. all of above. motors. loud speakers. generators. all of above. motors. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following is the example for piezo-electric material ? Lead zirconate titanate None of these Potassium niobate Copper Lead zirconate titanate None of these Potassium niobate Copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In order to minimise loss due to hysteresis, the magnetic material should have large B-H loop area. high retentivity. high resistivity. low hysteresis coefficient. large B-H loop area. high retentivity. high resistivity. low hysteresis coefficient. ANSWER DOWNLOAD EXAMIANS APP
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