Electrical Machines In dc machines, the field-flux axis and armature-mmf axis are respectively along quadrature axis and direct axis quadrature axis and interpolar axis direct axis and indirect axis direct axis and interpolar axis quadrature axis and direct axis quadrature axis and interpolar axis direct axis and indirect axis direct axis and interpolar axis ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole dc generator is running at 1500 rpm the frequency of current in the armature winding is 200Hz. 150Hz. 50Hz. 100Hz. 200Hz. 150Hz. 50Hz. 100Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/Vt ratio of a DC motor is an indication of running torque. speed regulation. starting torque. efficiency. running torque. speed regulation. starting torque. efficiency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to improve power factor. reduce copper loss. improve efficiency. improve starting torque. improve power factor. reduce copper loss. improve efficiency. improve starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Compensating winding is placed in the pole shoe main field armature core All of these pole shoe main field armature core All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The breakdown torque of a synchronous motor varies as 1/V applied voltage V 1/V² V² 1/V applied voltage V 1/V² V² ANSWER DOWNLOAD EXAMIANS APP
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