Magnetic Circuit Silicon steel is used in electrical machines because it has Low coercivity Low retentivity High coercivity Low hysteresis loss Low coercivity Low retentivity High coercivity Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit An air gap is usually inserted in magnetic circuits to Increase m.m.f. Prevent saturation Increase the flux None of the listed here Increase m.m.f. Prevent saturation Increase the flux None of the listed here 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 None of the listed here Small Large Zero None of the listed here Small Large Zero 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 Flux density lagging behind magnetizing force Molecular friction Rapid reversals of its magnetization It high retentivity Flux density lagging behind magnetizing force Molecular friction 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
Magnetic Circuit The unit of retentivity is Weber/sq. m Ampere turn/meter Ampere turns Weber Weber/sq. m Ampere turn/meter Ampere turns Weber ANSWER DOWNLOAD EXAMIANS APP
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