Magnetic Circuit An air gap is usually inserted in magnetic circuits to Increase m.m.f. None of the listed here Increase the flux Prevent saturation Increase m.m.f. None of the listed here Increase the flux Prevent saturation ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The initial rate of rise of current through a coil of inductance 10 H when suddenly connected to a D.C. supply of 200 V is ___________Vs 70 50 500 20 70 50 500 20 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The property of a material which opposes the creation of magnetic flux in it is known as Permeance Magneto-motive force Reluctivity Reluctance Permeance Magneto-motive force Reluctivity Reluctance ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Hysteresis loss least depends on Frequency Steinmetz’s coefficient of material Ambient temperature Volume of material Frequency Steinmetz’s coefficient of material Ambient temperature Volume of material ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Point out the wrong statement. Magnetic leakage is undesirable in electric machines because it Produces fringing Lowers their power efficiency Increases their cost of manufacture Leads to their increased weight Produces fringing Lowers their power efficiency Increases their cost of manufacture Leads to their increased weight ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Energy stored by a coil is doubled when its current is increased by percent. 44.6 47.5 41.4 42.5 44.6 47.5 41.4 42.5 ANSWER DOWNLOAD EXAMIANS APP
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