Objective Questions-Transformer

1.A Transformer will work on......
   Ans-a.c only

2.The primary and secondary of a transformer ............coupled
   Ans-magnetically

3.A transformer is an efficient device because it......
   Ans-is a static device

4.A transformer transfers electrical energy from primary to secondary usually with a change in ......
   Ans-voltage

5.The voltage per turn of the primary of a transformer is .........the voltage per turn of the secondary
   Ans-the same as

6.The winding of the transformer with greater number of turns will be .........
   Ans-high-voltage winding

7.A transformer dose not posses.........changing property
   Ans-power

8.The iron-core is used to...........of the transformer
   Ans-provide tight magnetic coupling

9.If a transformer core has air gaps,then .......
   Ans-magnetising  current is greatly increased    

10.The maximum flux produced in the core of a transformer is...........
   Ans-inversely proportional supply frequency

                                                                                                 to be continue..........