6.The distance between the starts of two consecutive coils measured in terms of coil sides is called

7.The value of exciting or magnetizing current depends upon which of the following factors ?

8.With conventional hydrogen cooling it is possible to increase the rating of a single unit to

9.With direct water cooling it is possible to have ratings of about

10.The time taken by the machine to attain 0.632 of its final steady temperature rise is called