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Why is a cathode ray tube connected to a vacuum pump?
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Apr 11, 2017
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Why is a cathode ray tube connected to a vacuum pump?
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Tim McDonald
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If the cathode ray tube is not evacuated, the electrons emitted collide with the air molecules and cannot reach the screen effectively. Therefore, the CRT is connected to a vacuum pump to remove air.
Nick Gammon
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Apr 16, 2017
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