Ch. 4 Filament Circuit Flashcards
1
Q
No rectifiers
Electron production!
Goal is to boil e- off filament wire
INCREASE mAs=DECREASE RESISTANCE
A
Filament circuit
2
Q
Control by mA on console
Variable resistor
Thermostat
Adjust mA=Adjustment in resistance= Adjustment in temp.
A
Rheostat
3
Q
DECREASE V=INCREASE A
A
Step-down transformer
4
Q
Within the cathode
Dual focuses
2 (small or large)
Boiling of electrons from wire (thermionic emission)
A
Filaments