The observation when the secondary winding of a current transformer is – McqOptions

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1.	The observation when the secondary winding of a current transformer is open-circuited is?
A.	The whole of the primary current produces a large value of flux in the core thereby producing a large voltage in the secondary winding
B.	The large voltage may act as a safety hazard for the operators and many even raptures the insulation
C.	When the large magnetizing force is taken off, it leaves a large value of residual magnetism
D.	When the large magnetizing force is taken off, it leaves a small value of residual magnetism
Answer» C. When the large magnetizing force is taken off, it leaves a large value of residual magnetism

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