Electrical Machines The effect of ------------------ on main field flux is armature reaction? All of these armature mmf armature flux armature current All of these armature mmf armature flux armature current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 240 V DC series motor takes 40 A when giving its rated output at 1500 rpm. Its resistance is 0.3 ohms. The value of resistance which must be added to obtain rated torque at 1000 rpm is 1.9 ohms. 5.7 ohms. 6 ohms. 2.2 ohms. 1.9 ohms. 5.7 ohms. 6 ohms. 2.2 ohms. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motors is/are widely used? None of these either of these squirrel cage induction motor slip ring induction motor None of these either of these squirrel cage induction motor slip ring induction motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the back emf in DC motor vanishes suddenly the motor will run at very low speed. start haunting. burn. run at very high speed. run at very low speed. start haunting. burn. run at very high speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An inverted V curve of synchronous motor shows variation of power factor and DC excitation at constant load. supply voltage and excitation current at constant load. power factor and supply voltage during hunting. supply voltage and field current at constant excitation. power factor and DC excitation at constant load. supply voltage and excitation current at constant load. power factor and supply voltage during hunting. supply voltage and field current at constant excitation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In above question, find rms line voltage for delta connection? 100 V. 50 V. 230.2 V. 399 V. 100 V. 50 V. 230.2 V. 399 V. ANSWER DOWNLOAD EXAMIANS APP
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