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Q#1 Instrument Transformer GATE EE 1991 MCQ +1 mark -0.33 marks

Precautions are essential for ensuring that the secondary of a CT is not open circuited when the primary circuit carries a current because

Dangerously high voltage might develop across the secondary

The ferromagnetic core may develop residual magnetism

The reflected impedance may prevent the flow of current in the primary circuit

None of the above

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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