Electrical Machines No load primary current in a transformer lags behind applied voltage somewhat less than 90à lags behind applied voltage by exactly 90Â&am leads the applied voltage by exactly 90Â& leads the applied voltage somewhat less than 90Ã& lags behind applied voltage somewhat less than 90à lags behind applied voltage by exactly 90Â&am leads the applied voltage by exactly 90Â& leads the applied voltage somewhat less than 90Ã& ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer cooling and insulating oil must be of high viscosity. low resistivity. low BDV. low viscosity. high viscosity. low resistivity. low BDV. low viscosity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the no-voltage release in a DC motor starter fails to operate on failure of supply, on resumption of supply the motor will get damaged. develop very low starting torque. start automatically without trouble. not start automatically. get damaged. develop very low starting torque. start automatically without trouble. not start automatically. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the supply terminal of a DC shunt motor are interchanged The motor will stop. The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. The direction of rotation will reverse. The motor will stop. The motor will run at its normal speed in the same direction as before. The motor will run much faster in the same direction. The direction of rotation will reverse. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine, the armature windings are placed on the rotor because of necessity for electromechanical energy conversion. development of torque. generation of voltage. commutation. electromechanical energy conversion. development of torque. generation of voltage. commutation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V, dc shunt motor draws 15 A while supplying the rated load at a speed of 80 rad/s. The armature resistance is 0.5 W and the field winding resistance is 80 W. The net voltage across the armature resistance at the time of plugging will be 240 V 474 V 6 V 234 V 240 V 474 V 6 V 234 V ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS