The conductivity of gases at low pressure can be termed as I. hot cathode emission...
PHYSICS
JAMB 2019
The conductivity of gases at low pressure can be termed as
I. hot cathode emission
II. thermo ionic emission
III. cold cathode emission
IV. Field emission
- A. I & II
- B. II & III
- C. III & IV
- D. IV & V
Correct Answer: C. III & IV
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