Electrical Machines A lap wound DC machine has 400 conductors and 8 poles. The voltage induced per conductor is 2 volts. The machine generates a voltage of 800 V. 200 V. 400 V. 100 V. 800 V. 200 V. 400 V. 100 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generators, the cause of rapid brush wear may be severe sparking. rough commutator surface. any of above. imperfect contact. severe sparking. rough commutator surface. any of above. imperfect contact. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The current drawn by the armature of DC motor is directly proportional to The torque required. The speed of motor. None of above. The voltage across the terminals. The torque required. The speed of motor. None of above. The voltage across the terminals. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator V curve is drawn between field current on Y-axis and armature current on X-axis. field current on X-axis and power factor on Y-axis. either of these. field current on X-axis and armature current on Y-axis. field current on Y-axis and armature current on X-axis. field current on X-axis and power factor on Y-axis. either of these. field current on X-axis and armature current on Y-axis. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Exciting current of an induction motor is higher than power transformer. none of these. lesser than power transformer. equal as power transformer. higher than power transformer. none of these. lesser than power transformer. equal as power transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC machine having P no of pair of pole pairs, Z no of conductors having length L of resistivity ρ and cross section S are arranged. what is the armature resistance? PZL/4Sp² PZL/4S PZL/ 4Sa PZL/4Sa² PZL/4Sp² PZL/4S PZL/ 4Sa PZL/4Sa² ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS