Engineering Materials in EE How many classes of insulating materials are there? 8. 6. 7. 5. 8. 6. 7. 5. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A ferrite core has low eddy current loss than an iron core because ferrites are magnetic. ferrites have hig hysteresis. / >ferrites have high resistance. ferrites have low permeability. ferrites are magnetic. ferrites have hig hysteresis. / >ferrites have high resistance. ferrites have low permeability. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following is the least desired property in magnetic materials for electrical engineering applications ? High magnetic permeability. Large hysteresis loop. High electrical resistivity. All of these High magnetic permeability. Large hysteresis loop. High electrical resistivity. All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of the following is the ferroelectric material ? Potassium dihydrogen phosphate. All of these Rochelle salt. Barium titanate. Potassium dihydrogen phosphate. All of these Rochelle salt. Barium titanate. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The magnetisation and applied field in ferromagnetic materials are related sinusoidally. non linearly. parabolically. linearly. sinusoidally. non linearly. parabolically. linearly. 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 resistivity. low hysteresis coefficient. high retentivity. large B-H loop area. high resistivity. low hysteresis coefficient. high retentivity. ANSWER DOWNLOAD EXAMIANS APP
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