Magnetic Circuit Hysteresis loss least depends on Steinmetz’s coefficient of material Ambient temperature Frequency Volume of material Steinmetz’s coefficient of material Ambient temperature Frequency Volume of material 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 Hard steel is suitable for making permanent magnets because Its hysteresis loop has large area Its mechanical strength is high It has good residual magnetism Its mechanical strength is low Its hysteresis loop has large area Its mechanical strength is high It has good residual magnetism Its mechanical strength is low ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit In a magnetic material hysteresis loss takes place primarily due to Molecular friction Rapid reversals of its magnetization Flux density lagging behind magnetizing force It high retentivity Molecular friction Rapid reversals of its magnetization Flux density lagging behind magnetizing force It high retentivity ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Silicon steel is used in electrical machines because it has Low hysteresis loss Low coercivity High coercivity Low retentivity Low hysteresis loss Low coercivity High coercivity Low retentivity ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Energy stored by a coil is doubled when its current is increased by percent. 47.5 42.5 44.6 41.4 47.5 42.5 44.6 41.4 ANSWER DOWNLOAD EXAMIANS APP
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