Magnetic Circuit In a magnetic material hysteresis loss takes place primarily due to Flux density lagging behind magnetizing force Rapid reversals of its magnetization It high retentivity Molecular friction Flux density lagging behind magnetizing force Rapid reversals of its magnetization It high retentivity Molecular friction ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hysteresis loss least depends on Frequency Volume of material Steinmetz’s coefficient of material Ambient temperature Frequency Volume of material Steinmetz’s coefficient of material Ambient temperature ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Silicon steel is used in electrical machines because it has High coercivity Low retentivity Low coercivity Low hysteresis loss High coercivity Low retentivity Low coercivity Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Conductivity is analogous to Retentivity Resistivity Inductance Permeability Retentivity Resistivity Inductance Permeability 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
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