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

the ferromagnetic core may develop residual magnetism

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

Precautions are essential for ensuring that the secondary of a CT is n

1.	Precautions are essential for ensuring that the secondary of a CT is not open circuited when the primary circuit carries a current because
A.	dangerously high voltage might develop across the secondary
B.	the ferromagnetic core may develop residual magnetism
C.	the reflected impedance may prevent the flow of current in the primary circuit
D.	none of these
Answer» B. the ferromagnetic core may develop residual magnetism

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

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