Electrical Machines The output power of a dc motor is given by EIa. none of these. EbIa. EbIa2. EIa. none of these. EbIa. EbIa2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When an electric train is moving down a hill, the DC motor will operate as DC series generator. DC shunt generator. DC series motor. DC shunt motor. DC series generator. DC shunt generator. DC series motor. DC shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator in case the brushes are moved so as to bring them in magnetic neutral axis, then, there will be cross-magnetisation. cross-magnetization as well as demagnetization. demagnetisation. none of above. cross-magnetisation. cross-magnetization as well as demagnetization. demagnetisation. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the armature reaction results in demagnetization of centers of poles. magnetization of leading and demagnetization of trailing pole tip. demagnetization of leading & magnetization of trailing pole tip. magnetization of inter poles. demagnetization of centers of poles. magnetization of leading and demagnetization of trailing pole tip. demagnetization of leading & magnetization of trailing pole tip. magnetization of inter poles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a DC Motor for constant load torque, what will happen to the armature current if armature resistance increases? Decreases. Increases. None of above. Remain unchanged Decreases. Increases. None of above. Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The starting resistance of DC motor is generally 1000 ohms. around 500 ohms. Low. Infinitely large. 1000 ohms. around 500 ohms. Low. Infinitely large. ANSWER DOWNLOAD EXAMIANS APP
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