Engineering Materials in EE In Bohr’s model of atomic structure, the nucleus consists of electrons and protons. protons and neutrons. electrons. protons. electrons and protons. protons and neutrons. electrons. protons. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Susceptibility is negative for none of above. non magnetic substances. ferromagnetic substances. diamagnetic substances. none of above. non magnetic substances. ferromagnetic substances. diamagnetic substances. 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 allowed orbit to another. jumping from one atom to another atom. being completely removed from an atom. moving faster or slower in an allowed orbit. jumping from one allowed orbit to another. jumping from one atom to another atom. being completely removed from an atom. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A ferromagnetic core subjected to cycles of magnetisation will exhibit hysteresis when the cycle is rotating. alternating. / >(A), (B), and (C) are all correct. pulsating. rotating. alternating. / >(A), (B), and (C) are all correct. pulsating. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which statement is not true of ferromagnetic materials. Energy loss is proportional to the area of hysteresis loop. They lose their nonlinearly property above the Curie temperature. They have large magnetic susceptibility. They have fixed value of μr. Energy loss is proportional to the area of hysteresis loop. They lose their nonlinearly property above the Curie temperature. They have large magnetic susceptibility. They have fixed value of μr. 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
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