Magnetic Circuit Energy stored by a coil is doubled when its current is increased by percent. 42.5 44.6 47.5 41.4 42.5 44.6 47.5 41.4 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Those magnetic materials are best suited for making armature and transformer cores which have ________permeability and _________hysteresis loss. High, high Low, high Low, low High, low High, high Low, high Low, low High, low 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 70 50 500 20 70 50 500 20 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit A material for good magnetic memory should have High retentivity Low hysteresis loss Low retentivity High permeability High retentivity Low hysteresis loss Low retentivity High permeability 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 After one time constant Near the final maximum value of current At 63.2% of its maximum steady value At the start of the current flow After one time constant Near the final maximum value of current At 63.2% of its maximum steady value ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit An air gap is usually inserted in magnetic circuits to None of the listed here Increase m.m.f. Increase the flux Prevent saturation None of the listed here Increase m.m.f. Increase the flux Prevent saturation ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS