What particles are released from the hot filament of a cathode-ray oscilloscope (c.r.o.), and what type of field is used to speed them up?
- Aelectrons; electric
- Belectrons; magnetic
- Cprotons; electric
- Dprotons; magnetic
Physics 5054 · O Level · Electrical charge
What particles are released from the hot filament of a cathode-ray oscilloscope (c.r.o.), and what type of field is used to speed them up?