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