Electrical Machines For an ideal transformer the winding should have minimum resistance on primary side and maximum resistance on secondary side no ohmic resistance on either side equal resistance on primary and secondary side maximum resistance on primary side and least resistance on secondary side minimum resistance on primary side and maximum resistance on secondary side no ohmic resistance on either side equal resistance on primary and secondary side maximum resistance on primary side and least resistance on secondary side ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Sparkless commutation can be achieved by employing inter poles. high resistance carbon brushes. any one or more of the above methods. compensating winding. inter poles. high resistance carbon brushes. any one or more of the above methods. compensating winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Oil is provided in an oil filled transformer for both cooling and insulation. lubrication. insulating. cooling. both cooling and insulation. lubrication. insulating. cooling. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be 0.72. 0.62. 1.24. 0.25. 0.72. 0.62. 1.24. 0.25. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do load test back to back test OC and SC tests None of these load test back to back test OC and SC tests None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an alternator the voltage generated per phase is proportional to All of these frequency of waveform. flux per pole. number of turns in coil. All of these frequency of waveform. flux per pole. number of turns in coil. ANSWER DOWNLOAD EXAMIANS APP
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