TRANSFORMER MCQs

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1. A transformer can operate from _______ d.c.





2. A _______ can operate from changing dc.





3. An autotransformer has only _______ winding.





4. An _______ transformer has only one winding.





5. A transformer represents an example of __ inductance.





6. A ____ represents an example of mutual inductance.





7. Thin sheets of silicon steel used for making transformer core are called:





8. Unit of inductance is called _______.





9. Unit of _______ is called Henry.





10. A transformer consists of _______ or more coils.





11. Transformer coils are _______ coupled.





12. A _______ transformer has more than 1 turn ratio.





13. A _______ transformer has less than 1 turn ratio.





14. A transformer cannot respond to _______ source.





15. _______ cannot be increased by transformer.





16. Power cannot be increased by _______.





17. Transformer working depends on _______.





18. Working of _______ depends on mutual inductance.





19. Step-up transformer steps up _______.





20. _______ transformer increases the level of voltage.





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