Magnetic Circuit An air gap is usually inserted in magnetic circuits to Prevent saturation Increase m.m.f. Increase the flux None of the listed here Prevent saturation Increase m.m.f. Increase the flux None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Silicon steel is used in electrical machines because it has Low hysteresis loss Low retentivity High coercivity Low coercivity Low hysteresis loss Low retentivity High coercivity Low coercivity ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Conductivity is analogous to Resistivity Retentivity Permeability Inductance Resistivity Retentivity Permeability Inductance ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The property of a material which opposes the creation of magnetic flux in it is known as Reluctivity Reluctance Permeance Magneto-motive force Reluctivity Reluctance Permeance Magneto-motive force ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit When both the inductance and resistance of a coil are doubled the value of Time constant remains unchanged Time constant is halved Final steady current is doubled Initial rate of rise of current is doubled Time constant remains unchanged Time constant is halved Final steady current is doubled Initial rate of rise of current is doubled ANSWER DOWNLOAD EXAMIANS APP
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