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Q#1 DC Machines GATE EE 2003 MCQ +2 marks -0.66 marks

A DC series motor driving an electric train faces a constant power load. It is running at rated speed and rated voltage. If the speed has to be brought down to 0.25 p.u. the supply voltage has to be approximately brought down to

0.75 p.u

0.5 p.u

0.25 p.u

0.125 p.u

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Topic Questions Attempted Correct
Network Analysis 259 0 0
Signals and Systems 164 0 0
Control Systems 201 0 0
Analog Electronics 180 0 0
Digital Electronics 148 0 0
Electrical Machines 390 0 0
Power Electronics 237 0 0
Power Systems 343 0 0
EMFT EE 9 0 0
Measurement 152 0 0
Engineering Mathematics 225 0 0
General Aptitude 206 0 0