Magnetic Circuit Hard steel is suitable for making permanent magnets because It has good residual magnetism Its hysteresis loop has large area Its mechanical strength is high Its mechanical strength is low It has good residual magnetism Its hysteresis loop has large area Its mechanical strength is high Its mechanical strength is low ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The property of a material which opposes the creation of magnetic flux in it is known as Reluctivity Permeance Magneto-motive force Reluctance Reluctivity Permeance Magneto-motive force Reluctance ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit A material for good magnetic memory should have Low retentivity Low hysteresis loss High permeability High retentivity Low retentivity Low hysteresis loss High permeability High retentivity ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hysteresis loss least depends on Ambient temperature Volume of material Frequency Steinmetz’s coefficient of material Ambient temperature Volume of material Frequency Steinmetz’s coefficient of material ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The unit of retentivity is Weber Ampere turn/meter Weber/sq. m Ampere turns Weber Ampere turn/meter Weber/sq. m Ampere turns 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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