Magnetic Circuit Energy stored by a coil is doubled when its current is increased by percent. 47.5 42.5 41.4 44.6 47.5 42.5 41.4 44.6 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Laminated cores, in electrical machines, are used to reduce All of the listed here Copper loss Eddy current loss Hysteresis loss All of the listed here Copper loss Eddy current loss Hysteresis loss ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit When both the inductance and resistance of a coil are doubled the value of Final steady current is doubled Time constant is halved Time constant remains unchanged Initial rate of rise of current is doubled Final steady current is doubled Time constant is halved Time constant remains unchanged Initial rate of rise of current is doubled ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit The relative permeability of a ferromagnetic material is More than 100 Ωr 1000 More than one Less than one More than 10 More than 100 Ωr 1000 More than one Less than one More than 10 ANSWER DOWNLOAD EXAMIANS APP
Magnetic Circuit Silicon steel is used in electrical machines because it has Low hysteresis loss High coercivity Low retentivity Low coercivity Low hysteresis loss High coercivity Low retentivity Low coercivity 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 20 500 50 70 20 500 50 ANSWER DOWNLOAD EXAMIANS APP
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