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 20 50 500 70 20 50 500 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit In a magnetic material hysteresis loss takes place primarily due to Flux density lagging behind magnetizing force It high retentivity Rapid reversals of its magnetization Molecular friction Flux density lagging behind magnetizing force It high retentivity Rapid reversals of its magnetization Molecular friction ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The unit of magnetic flux is Henry Ampere/metre Weber Ampere-turn/weber Henry Ampere/metre Weber Ampere-turn/weber ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Those magnetic materials are best suited for making armature and transformer cores which have ________permeability and _________hysteresis loss. Low, low Low, high High, high High, low Low, low Low, high High, high High, low ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Conductance is analogous to Inductance Flux Reluctance Permeance Inductance Flux Reluctance Permeance ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit When both the inductance and resistance of a coil are doubled the value of 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 Initial rate of rise of current is doubled Time constant remains unchanged Final steady current is doubled ANSWER DOWNLOAD EXAMIANS APP
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