Electrical Machines The output voltage of a DC generator is E = V + Ra. E = V – IaRa. E = V + Ia. E = V + IaRa. E = V + Ra. E = V – IaRa. E = V + Ia. E = V + IaRa. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, brushes are always placed along magnetic neutral axis. load axis. armature axis. geometrical neutral axis. magnetic neutral axis. load axis. armature axis. geometrical neutral axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC motor are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor ? 14.28%. 16.67%. 15.30%. 18.25%. 14.28%. 16.67%. 15.30%. 18.25%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the brushes remain in contact with conductors which lie in the inter polar gaps. there is no hard and fast rule for this. lie under north pole. lie under south pole. lie in the inter polar gaps. there is no hard and fast rule for this. lie under north pole. lie under south pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In electric locomotives which of the following motor are used ? DC Shunt motor. DC compound motor. DC series motor. Synchronous motor. DC Shunt motor. DC compound motor. DC series motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A separately-excited dc motor has an armature resistance of 0.5 Ω. It runs off a 250 V dc supply Drawing an armature current of 20 A at 1500 rpm. The torque developed for an armature current Of 10 A, for the same field current, will be 15.28 Nm 16.55 Nm 15.6 Nm 15.92 Nm 15.28 Nm 16.55 Nm 15.6 Nm 15.92 Nm ANSWER DOWNLOAD EXAMIANS APP
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