Which of these is observed when air is pumped out of a discharge tube without lowering its pressure
A
the conductivity of the air increases
B
the conductivity of the air decreases
C
conduction does not occur
D
spark are produced
Verified Correct Answer: C.
Physical Principles & Numerical Solution
Conduction takes places in gases when air is pumped out of a discharged tube under reduced pressure.
Source: Myschool Past Questions Archive (Record #55670)