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 When both the inductance and resistance of a coil are doubled the value of Initial rate of rise of current is doubled Time constant remains unchanged Final steady current is doubled Time constant is halved Initial rate of rise of current is doubled Time constant remains unchanged Final steady current is doubled Time constant is halved ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Silicon steel is used in electrical machines because it has Low coercivity High coercivity Low retentivity Low hysteresis loss Low coercivity High coercivity Low retentivity Low hysteresis loss 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 Small Zero None of the listed here Large Small Zero None of the listed here Large ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Permeability in a magnetic circuit corresponds to_________ in an electric circuit. Resistivity Conductivity Conductance Resistance Resistivity Conductivity Conductance Resistance 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 20 70 50 500 20 70 50 500 ANSWER DOWNLOAD EXAMIANS APP
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