Magnetic Circuit In a magnetic material hysteresis loss takes place primarily due to Rapid reversals of its magnetization Molecular friction Flux density lagging behind magnetizing force It high retentivity Rapid reversals of its magnetization Molecular friction Flux density lagging behind magnetizing force It high retentivity ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit A material for good magnetic memory should have High retentivity Low retentivity Low hysteresis loss High permeability High retentivity Low retentivity Low hysteresis loss High permeability ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The relative permeability of a ferromagnetic material is More than one More than 10 More than 100 Ωr 1000 Less than one More than one More than 10 More than 100 Ωr 1000 Less than one ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be None of the listed here Zero Large Small None of the listed here Zero Large Small ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hysteresis loss least depends on Volume of material Ambient temperature Steinmetz’s coefficient of material Frequency Volume of material Ambient temperature Steinmetz’s coefficient of material Frequency ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit When both the inductance and resistance of a coil are doubled the value of Final steady current is doubled Initial rate of rise of current is doubled Time constant is halved Time constant remains unchanged Final steady current is doubled Initial rate of rise of current is doubled Time constant is halved Time constant remains unchanged ANSWER DOWNLOAD EXAMIANS APP
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