Engineering Materials in EE According to the Bohr model, an electron gains or losses energy only by jumping from one atom to another atom. moving faster or slower in an allowed orbit. being completely removed from an atom. jumping from one allowed orbit to another. jumping from one atom to another atom. moving faster or slower in an allowed orbit. being completely removed from an atom. jumping from one allowed orbit to another. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The permeability of iron can be increased by alloying with cobalt. purifying it. reducing carbon percentage. increasing carbon percentage. alloying with cobalt. purifying it. reducing carbon percentage. increasing carbon percentage. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE ________ is the most detrimental impurity in the magnetic materials Sulphur. Carbon. Oxygen. Nitrogen. Sulphur. Carbon. Oxygen. Nitrogen. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE A ferromagnetic core subjected to cycles of magnetisation will exhibit hysteresis when the cycle is alternating. / >(A), (B), and (C) are all correct. rotating. pulsating. alternating. / >(A), (B), and (C) are all correct. rotating. pulsating. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE The permanent magnets are made from which of following materials ? Diamagnetic. Paramagnetic. Soft iron. Ferromagnetic. Diamagnetic. Paramagnetic. Soft iron. Ferromagnetic. ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials in EE Materials which lack permanent magnetic dipoles are called None of these ferro-magnectic. dia-magnetic. semi-magnetic. None of these ferro-magnectic. dia-magnetic. semi-magnetic. ANSWER DOWNLOAD EXAMIANS APP
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