Why do gases not conduct electricity at ordinary pressure?

AI Thread Summary
Current does not flow through gas in a discharge tube at ordinary pressure because gases act as insulators due to the absence of free electrons or ions necessary for electrical conduction. When the power switch is on, the gas remains non-conductive, which is why users are encouraged to demonstrate their attempts at solving the question before seeking assistance. This policy emphasizes the understanding that gases do not conduct electricity under normal conditions.
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why current does not flow through gas in discharge tube at ordinary pressure?
 
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You have to show your attempts at solving the question to receive help. This is a forum policy.
 
Gases are not supposed to conduct electricity when you leave the power switch on. If it were so, you wouldn't had asked the question.

Gases are insulators of electricity, since they can't conduct electricity as they lack free electrons or free ions.
 

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