Magnetic Circuit Silicon steel is used in electrical machines because it has Low coercivity High coercivity Low hysteresis loss Low retentivity Low coercivity High coercivity Low hysteresis loss Low retentivity 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 Large None of the listed here Small Zero Large None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The unit of retentivity is Ampere turn/meter Ampere turns Weber/sq. m Weber Ampere turn/meter Ampere turns Weber/sq. m Weber ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit An air gap is usually inserted in magnetic circuits to None of the listed here Prevent saturation Increase the flux Increase m.m.f. None of the listed here Prevent saturation Increase the flux Increase m.m.f. ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The relative permeability of a ferromagnetic material is More than one More than 10 Less than one More than 100 Ωr 1000 More than one More than 10 Less than one More than 100 Ωr 1000 ANSWER DOWNLOAD EXAMIANS APP