With the aid of a labelled diagram, describe how cathode rays are produced.
With the aid of a labelled diagram, describe how cathode rays are produced.
- Cathode rays is a beam of electrons emitted from the cathode of a high-vacuum tube
- Hot Cathode C emits electrons when heated known as thermionic emission
- The electrons are accelerated by p.d between cathode C and anode A
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CATEGORIES A-level modern physics
TAGS Dr. Bbosa Science
Not so clear
clear explanation provided