Engineering Materials in EE What is the name of the fluorescent material that gives red colour fluorescence? Magnesium silicate. Zinc sulphide. Zinc silicate. Calcium silicate. Magnesium silicate. Zinc sulphide. Zinc silicate. Calcium silicate. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The electron configuration of sulfur atom is 2, 8, 6. 2, 8, 2. none of these. 1s2 , 2s2 2p6, 3s2 3p6. 2, 8, 6. 2, 8, 2. none of these. 1s2 , 2s2 2p6, 3s2 3p6. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In order to minimise loss due to hysteresis, the magnetic material should have high retentivity. high resistivity. large B-H loop area. low hysteresis coefficient. high retentivity. high resistivity. large B-H loop area. low hysteresis coefficient. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE When the atomic magnetic moments are randomly oriented in a solid its magnetic behavior is termed as semi-magnetic. anti-ferromagnetic. poly crystalline. paramagnetic. semi-magnetic. anti-ferromagnetic. poly crystalline. paramagnetic. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The temperature beyond which substances lose their ferroelectric properties, is known as critical temperature. conversion temperature. curie temperature. inversion temperature. critical temperature. conversion temperature. curie temperature. inversion temperature. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE According to the Bohr model, an electron gains or losses energy only by 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. jumping from one allowed orbit to another. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS