Magnetic Circuit Hard steel is suitable for making permanent magnets because Its mechanical strength is high Its hysteresis loop has large area It has good residual magnetism Its mechanical strength is low Its mechanical strength is high Its hysteresis loop has large area It has good residual magnetism Its mechanical strength is low ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The unit of retentivity is Ampere turn/meter Weber Weber/sq. m Ampere turns Ampere turn/meter Weber Weber/sq. m Ampere turns ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit A material for good magnetic memory should have High permeability Low retentivity High retentivity Low hysteresis loss High permeability Low retentivity High retentivity Low hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hysteresis loss least depends on Frequency Steinmetz’s coefficient of material Volume of material Ambient temperature Frequency Steinmetz’s coefficient of material Volume of material Ambient temperature ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit An air gap is usually inserted in magnetic circuits to Increase m.m.f. Prevent saturation None of the listed here Increase the flux Increase m.m.f. Prevent saturation None of the listed here Increase the flux ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Laminated cores, in electrical machines, are used to reduce Hysteresis loss All of the listed here Eddy current loss Copper loss Hysteresis loss All of the listed here Eddy current loss Copper loss ANSWER DOWNLOAD EXAMIANS APP
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