I. Low pressure.
II. High pressure.
III. High p.d.
IV. Low p.d.
Which combination of the above is true of the conduction of electricity through gases?
A
I and IV only
B
I and III only
C
II and IV only
D
II and III only
Verified Correct Answer: B.
Physical Principles & Numerical Solution
Electricity conduction through gases is usually done under low pressure (I) and high voltage (III). Thus OPTION B is correct.
Source: Myschool Past Questions Archive (Record #9066)