Magnetic Circuit The rate of rise of current through an inductive coil is maximum After one time constant Near the final maximum value of current At the start of the current flow At 63.2% of its maximum steady value After one time constant Near the final maximum value of current At the start of the current flow At 63.2% of its maximum steady value ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit A material for good magnetic memory should have Low retentivity High permeability High retentivity Low hysteresis loss Low retentivity High permeability High retentivity Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The relative permeability of a ferromagnetic material is Less than one More than 10 More than one More than 100 Ωr 1000 Less than one More than 10 More than one More than 100 Ωr 1000 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The initial rate of rise of current through a coil of inductance 10 H when suddenly connected to a D.C. supply of 200 V is ___________Vs 500 20 70 50 500 20 70 50 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hard steel is suitable for making permanent magnets because Its hysteresis loop has large area It has good residual magnetism Its mechanical strength is low Its mechanical strength is high Its hysteresis loop has large area It has good residual magnetism Its mechanical strength is low Its mechanical strength is high ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Conductivity is analogous to Permeability Resistivity Inductance Retentivity Permeability Resistivity Inductance Retentivity ANSWER DOWNLOAD EXAMIANS APP
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