Engineering Materials in EE What is the name of the fluorescent material that gives red colour fluorescence? Zinc silicate. Zinc sulphide. Calcium silicate. Magnesium silicate. Zinc silicate. Zinc sulphide. Calcium silicate. Magnesium silicate. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The permeability of iron can be increased by increasing carbon percentage. alloying with cobalt. reducing carbon percentage. purifying it. increasing carbon percentage. alloying with cobalt. reducing carbon percentage. purifying it. 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 A ferromagnetic core subjected to cycles of magnetisation will exhibit hysteresis when the cycle is alternating. pulsating. / >(A), (B), and (C) are all correct. rotating. alternating. pulsating. / >(A), (B), and (C) are all correct. rotating. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The electron configuration of sulfur atom is 1s2 , 2s2 2p6, 3s2 3p6. 2, 8, 6. none of these. 2, 8, 2. 1s2 , 2s2 2p6, 3s2 3p6. 2, 8, 6. none of these. 2, 8, 2. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Positive magnetostriction exists when none of above. both are correct. dipoles are attract each other. dipoles are repel other. none of above. both are correct. dipoles are attract each other. dipoles are repel other. ANSWER DOWNLOAD EXAMIANS APP
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