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
Verified Correct Answer: C.
Physical Principles & Numerical Solution
As conduction of gases is at low pressure and high voltage, called field or cold cathode emission.
Source: Myschool Past Questions Archive (Record #55238)