Electrical Machines Voltage regulation of transformer is given by (V2 - E2) / V2 (E2 - V2) / V2 (V2 - E2) / E2 (E2 - V2) / E2 (V2 - E2) / V2 (E2 - V2) / V2 (V2 - E2) / E2 (E2 - V2) / E2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors uses slip rings? Both Synchronous and Induction motor Synchronous motors Induction motors DC Shunt Motor Both Synchronous and Induction motor Synchronous motors Induction motors DC Shunt Motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To increase starting torque of a 3-phase slip ring induction motor, preferred method is to increase rotor resistance None of these supply voltage supply frequency rotor resistance None of these supply voltage supply frequency ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load saturation characteristics are plotted between short circuit current and armature current no load voltage and field current no load voltage and armature current short circuit current and field current short circuit current and armature current no load voltage and field current no load voltage and armature current short circuit current and field current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the effect of armature reaction ? Armature flux distorts the main field flux. Both option B and C. None of the options. Armature flux weakens the main field flux. Armature flux distorts the main field flux. Both option B and C. None of the options. Armature flux weakens the main field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load current in a transformer lags the applied voltage by about 75°. 0°. about 115°. 90°. about 75°. 0°. about 115°. 90°. ANSWER DOWNLOAD EXAMIANS APP
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