Magnetic Circuit The unit of retentivity is Ampere turns Weber Ampere turn/meter Weber/sq. m Ampere turns Weber Ampere turn/meter Weber/sq. m ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Ferrites have high hysteresis Ferrites have low permeability Ferrites have high resistance Ferrites have high resistance None of the listed here Ferrites have low permeability Ferrites have high resistance Ferrites have high resistance None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hard steel is suitable for making permanent magnets because 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 It has good residual magnetism ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The rate of rise of current through an inductive coil is maximum At the start of the current flow Near the final maximum value of current After one time constant At 63.2% of its maximum steady value At the start of the current flow Near the final maximum value of current After one time constant At 63.2% of its maximum steady value ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Reciprocal of reluctance is Permeability Reluctivity Permeance Susceptibility Permeability Reluctivity Permeance Susceptibility ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit When both the inductance and resistance of a coil are doubled the value of Time constant is halved Time constant remains unchanged Initial rate of rise of current is doubled Final steady current is doubled Time constant is halved Time constant remains unchanged Initial rate of rise of current is doubled Final steady current is doubled ANSWER DOWNLOAD EXAMIANS APP
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