Electrical Machines Slip rings of an induction motors are made of aluminium. carbon. stainless steel. phosphor bronze. aluminium. carbon. stainless steel. phosphor bronze. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor armature conductor of length 0.5 m is exposed to a flux density of 4 Wb / m2. Calculate the force experienced by the conductor, when the armature current is 5 Amp? 15 N. Can't be determined. 20 N. None of these. 15 N. Can't be determined. 20 N. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor slots are slightly skewed in squirrel cage induction motor to provide ease of fabrication. decrease the amount of copper to be used. reduce the magnetic hum and locking tendency of rotor. increase the strength of rotor bars. provide ease of fabrication. decrease the amount of copper to be used. reduce the magnetic hum and locking tendency of rotor. increase the strength of rotor bars. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc motors, under leading pole tips flux density will--------? either increase or decrease decrease None of these increase either increase or decrease decrease None of these increase ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machines shape of net flux density is? saddle shape peaky in nature flat tapped or trapezoidal sine wave saddle shape peaky in nature flat tapped or trapezoidal sine wave ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors has negative speed regulation? Shunt motors. Differential compound motors. Both B and C. Series motors. Shunt motors. Differential compound motors. Both B and C. Series motors. ANSWER DOWNLOAD EXAMIANS APP
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