Magnetic Circuit Silicon steel is used in electrical machines because it has High coercivity Low hysteresis loss Low coercivity Low retentivity High coercivity Low hysteresis loss Low coercivity Low retentivity ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit A material for good magnetic memory should have Low retentivity Low hysteresis loss High retentivity High permeability Low retentivity Low hysteresis loss High retentivity High permeability ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Reciprocal of reluctance is Permeance Reluctivity Susceptibility Permeability Permeance Reluctivity Susceptibility Permeability ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Laminated cores, in electrical machines, are used to reduce Copper loss Eddy current loss All of the listed here Hysteresis loss Copper loss Eddy current loss All of the listed here Hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit When both the inductance and resistance of a coil are doubled the value of Time constant remains unchanged Initial rate of rise of current is doubled Time constant is halved Final steady current is doubled Time constant remains unchanged Initial rate of rise of current is doubled Time constant is halved Final steady current is doubled ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The unit of retentivity is Weber Weber/sq. m Ampere turn/meter Ampere turns Weber Weber/sq. m Ampere turn/meter Ampere turns ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS