Subject: Why is there a vacuum inside an electron gun (or CRT)?
Date: Sun Feb 17 09:06:45 2002
Posted by John
Grade level: 10-12
School: No school entered.
City: No city entered. State/Province: Florida
Area of science: Physics
I read in my school physics book that there is a vacuum inside an electron gun
(or a cathode ray tube inside TVs). But why is a vacuum needed? What would
happen if an electron (or even a proton) beam was directed through air? Would
air molecules interfere with the beam?
Re: Why is there a vacuum inside an electron gun (or CRT)?
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