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Byju's Answer
Standard VIII
Physics
Transfer of Charges
Why is low pr...
Question
Why is low pressure maintained in the cathode ray discharge tube?
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Solution
Air behave as insulator So in vaccum charge flow rapidly
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Q.
State True or False.
High pressure and low voltage should be maintained in the discharge tube for the production of cathode rays.
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Gases are generally maintained at very low pressures in a cathode ray tube:
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Which of the air pressures is appropriate for the production of cathode rays in the discharge tube?
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Why is a cathode ray tube evacuated to a low pressure?
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What happens if the negative potential is changed on a grid?
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