51) Single turn primary of a current transformer has a turns ratio 10:1. Which one of the following is the primary current if the current measured in secondary is 2 amperes ?

52) As compared to the secondary of a step up transformer, the primary will have :

53) In a transformer, if the number of turns in the secondary winding is twice that in the primary winding, the secondary voltage will be :

54) Which one of the following can be increased by using a step-up transformer ?

55) In 1 kVA transformer the number of turns per volt is 8. What is the number of turns in high voltage side, If the voltage is 110 V ?