Magnetic Circuit Energy stored by a coil is doubled when its current is increased by percent. 42.5 47.5 44.6 41.4 42.5 47.5 44.6 41.4 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The rate of rise of current through an inductive coil is maximum After one time constant At the start of the current flow Near the final maximum value of current At 63.2% of its maximum steady value After one time constant At the start of the current flow Near the final maximum value of current At 63.2% of its maximum steady value ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit In a magnetic material hysteresis loss takes place primarily due to Rapid reversals of its magnetization It high retentivity Molecular friction Flux density lagging behind magnetizing force Rapid reversals of its magnetization It high retentivity Molecular friction Flux density lagging behind magnetizing force ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit An air gap is usually inserted in magnetic circuits to None of the listed here Increase the flux Increase m.m.f. Prevent saturation None of the listed here Increase the flux Increase m.m.f. Prevent saturation ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The relative permeability of a ferromagnetic material is More than one Less than one More than 100 Ωr 1000 More than 10 More than one Less than one More than 100 Ωr 1000 More than 10 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 Large Small Zero None of the listed here Large Small Zero None of the listed here ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS