Magnetic Circuit The relative permeability of a ferromagnetic material is More than 100 Ωr 1000 More than 10 More than one Less than one More than 100 Ωr 1000 More than 10 More than one Less than one ANSWER DOWNLOAD EXAMIANS APP
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 The unit of retentivity is Weber Ampere turns Weber/sq. m Ampere turn/meter Weber Ampere turns Weber/sq. m Ampere turn/meter 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 Zero Large None of the listed here Small Zero Large None of the listed here Small 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, low High, high Low, low Low, high High, low High, high ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hysteresis loss least depends on Frequency Ambient temperature Steinmetz’s coefficient of material Volume of material Frequency Ambient temperature Steinmetz’s coefficient of material Volume of material ANSWER DOWNLOAD EXAMIANS APP