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Q#1 DC Machines GATE EE 1995 MCQ +2 marks -0.66 marks

Figure below, shows the details of an electromagnet with an operating coil rated for 230V, 50 Hz. The coil has 1500 turns. Find the average force of attraction on the armature of the electromagnet and the current drawn by the coil. Omit winding resistance and core losses and assume infinite permeability for the core.

303.4 N, 0.414 A

606.8 N, 0.828 A

1213.6 N, 1.656 A

450.2 N, 0.550 A

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Topic Questions Attempted Correct
Network Analysis 260 0 0
Signals and Systems 165 0 0
Control Systems 258 0 0
Analog Electronics 184 0 0
Digital Electronics 148 0 0
Electrical Machines 392 0 0
Power Electronics 237 0 0
Power Systems 344 0 0
EMFT EE 107 0 0
Measurement 158 0 0
Engineering Mathematics 225 0 0
General Aptitude 211 0 0