s9pycakkalas s9pycakkalas
  • 28-10-2016
  • Physics
contestada

Why is a cathode ray tube connected to a vacuum pump?

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scme1702
scme1702 scme1702
  • 02-11-2016
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.
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