Electrical Machines A 4-pole dc generator runs at 1500 rpm. The frequencyof current in the armature winding is 50 Hz 0 Hz 100 Hz 25 Hz 50 Hz 0 Hz 100 Hz 25 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected in parallel in series either of these depending on the design of the motor through inductive coupling in parallel in series either of these depending on the design of the motor through inductive coupling ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Commutators in DC machines have a role of which converts AC to DC. Both AC to DC and DC to AC. none of these. high voltage DC to low voltage DC. AC to DC. Both AC to DC and DC to AC. none of these. high voltage DC to low voltage DC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Poles of DC machine are often laminated to dissipate more heat. reduce iron weight. reduce pulsation loss. reduce armature reaction. dissipate more heat. reduce iron weight. reduce pulsation loss. reduce armature reaction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator with a diameter of 50 cm rotating at 1000 rpm. For a brush width of 1.5 cm, find the time of commutation in ms. 0.512. 0.573. 0.649. 0.443. 0.512. 0.573. 0.649. 0.443. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When Flemings right hand rule to find the direction of induced emf, the thumb points towards direction of motion of the conductor. opposite to the direction of motion of the conductor. direction of flux. direction of induced emf. direction of motion of the conductor. opposite to the direction of motion of the conductor. direction of flux. direction of induced emf. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS