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 Hysteresis loss least depends on Volume of material Ambient temperature Frequency Steinmetz’s coefficient of material Volume of material Ambient temperature Frequency Steinmetz’s coefficient of material ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit A material for good magnetic memory should have Low retentivity High permeability Low hysteresis loss High retentivity Low retentivity High permeability Low hysteresis loss High retentivity ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Point out the wrong statement. Magnetic leakage is undesirable in electric machines because it Lowers their power efficiency Leads to their increased weight Produces fringing Increases their cost of manufacture Lowers their power efficiency Leads to their increased weight Produces fringing Increases their cost of manufacture ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Silicon steel is used in electrical machines because it has Low retentivity Low hysteresis loss High coercivity Low coercivity Low retentivity Low hysteresis loss High coercivity Low coercivity ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The rate of rise of current through an inductive coil is maximum At 63.2% of its maximum steady value After one time constant At the start of the current flow Near the final maximum value of current At 63.2% of its maximum steady value After one time constant At the start of the current flow Near the final maximum value of current ANSWER DOWNLOAD EXAMIANS APP
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