what happens when one atmospheric pressure is there in discharge tube ?
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When the gas atoms in the discharge tube are at atmospheric pressure they collide with the electrons preventing them from reaching the anode. As no electrons reach the anode no current flows through the discharge tube. When the gas pressure is very low there are few gas atoms in the discharge tube.
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viditkul08:
So no electron will emit
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no elactron will emit in the form of partical and experiment faill
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