A. Value of transformation ratio remains constant B. Permeability of transformer core remains constant C. Core flux remains practically constant D. Primary voltage remains constant
A. Short-circuiting of the secondaries B. Power factor of one of the transformers is leading while that of the other lagging C. Transformers having higher copper losses will have negligible core losses D. Loading of the transformers not in proportion to their kva ratings
A. No losses and magnetic leakage B. Interleaved primary and secondary windings C. A common core for its primary and secondary windings D. Core of stainless steel and winding of pure copper metal
A. The current on secondary side is negligible B. The voltage on secondary side does not vary C. The voltage applied on primary side is low D. Full-load current is not supplied to the transformer
