Engineering Materials in EE When a ferromagnetic substance is magnetized small changes in dimensions occur. Such a phenomenon is known as magnetic hysteresis. magnetostriction. magneto-calorisation. magnetic expansion. magnetic hysteresis. magnetostriction. magneto-calorisation. magnetic expansion. 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 electrical resistivity. All of these High magnetic permeability. Large hysteresis loop. High electrical resistivity. All of these High magnetic permeability. Large hysteresis loop. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which of following material has least value of dielectric constant? Paper. Oil. Glass. Ceramics. Paper. Oil. Glass. Ceramics. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE All ions of an element have the same atomic number. number of protons. number of electrons. both option A. and C. atomic number. number of protons. number of electrons. both option A. and C. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Permanent magnets are used in loud speakers. generators. motors. all of above. loud speakers. generators. motors. all of above. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Substance having permeability less than the permeability of free space, are known as diamagnetic. paramagnetic. ferromagnetic. bipolar. diamagnetic. paramagnetic. ferromagnetic. bipolar. ANSWER DOWNLOAD EXAMIANS APP
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