Question

Statement ( A ) : Flux leakage in a transformer can be minimized by winding the primary and secondary coils one over the other.
Statement ( B ) : Core of the transformer is made of soft iron

• A. A is true but B is false
• B. Both A and B are true
• C. A is false but B is true
• D. Both A and B are false

Answer 1

Answer: (B)

Both A and B are true

Flux leakage is a transformers can be minimized by shielding. Core of the transformer is made of soft iron.
The ideal transformer model assumes that all flux generated by the primary winding links all the turns of energy winding, including itself. In practice, some flux traverse paths that take it outside the windings. Such flux is termed leakage flux. Soft Iron is ferrmagnetic, so it acquires magnetic field when field is on and release when it is off so, in changing magnetic field it is very good support of field.