Electrical Machines In which of the following speed control of DC motor the speed obtained is below than the rated speed? Armature voltage control. Field resistance control. Any of above. Armature circuit resistance control. Armature voltage control. Field resistance control. Any of above. Armature circuit resistance control. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a lap winding dc machine number of conductors are 100 and number of parallel paths are 10. Find the average pitch 100 1 10 50 100 1 10 50 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by sf. s2. f / s. sf / 2. sf. s2. f / s. sf / 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The starting resistance of DC motor is generally Low. around 500 ohms. Infinitely large. 1000 ohms. Low. around 500 ohms. Infinitely large. 1000 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Inter pole winding is connected in-------------------------- ? parallel with main poles parallel with armature series with main poles series with armature parallel with main poles parallel with armature series with main poles series with armature ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machines, the armature windings are placed on the rotor because of the necessity for development of torque commutation electromechanical energy conversion generation of voltage development of torque commutation electromechanical energy conversion generation of voltage ANSWER DOWNLOAD EXAMIANS APP
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