Engineering Materials in EE Which of the following is the least desired property in magnetic materials for electrical engineering applications ? All of these High magnetic permeability. High electrical resistivity. Large hysteresis loop. All of these High magnetic permeability. High electrical resistivity. Large hysteresis loop. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Which statement is not true of ferromagnetic materials. They have fixed value of μr. They have large magnetic susceptibility. Energy loss is proportional to the area of hysteresis loop. They lose their nonlinearly property above the Curie temperature. They have fixed value of μr. They have large magnetic susceptibility. Energy loss is proportional to the area of hysteresis loop. They lose their nonlinearly property above the Curie temperature. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The permeability of iron can be increased by increasing carbon percentage. purifying it. reducing carbon percentage. alloying with cobalt. increasing carbon percentage. purifying it. reducing carbon percentage. alloying with cobalt. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The intensity of magnetization, M, of a ferro magnetic solid decreases with increasing temperature. is independent of temperature. increases with increasing temperature. depends on method of heating. decreases with increasing temperature. is independent of temperature. increases with increasing temperature. depends on method of heating. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE According to the Bohr model, an electron gains or losses energy only by 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. moving faster or slower in an allowed orbit. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE In Bohr’s model of atomic structure, the nucleus consists of protons and neutrons. electrons and protons. protons. electrons. protons and neutrons. electrons and protons. protons. electrons. ANSWER DOWNLOAD EXAMIANS APP
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