Inthe filament of a coolidge tube, why is the inductor used ??see HCV figure in page 388 (fig-44.1)..Further what would happen if we use the secondary of a step up tranformer connected to an ac source in placethe dc voltage used toapply a largepotential difference between the filament and the anode ??Ithink it cant be used because as and when the direction of current in the primary changes, the filament and anode would exchange their potentials and as a result in one half cycle of the ac, no thermions would go and hit the anode ..But in some books they have used it !!!!PLEASE ANSWER ....
Radhika Batra , 10 Years ago
Grade 11
