Q.

Which of the following condition is suitable for a cathode ray discharge tube?

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a

Low pressure, low voltage

b

High pressure, high voltage

c

High pressure, low voltage

d

Low pressure, high voltage

answer is A.

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Detailed Solution

The suitable conditions of cathode ray discharge tube are low pressure and high pressures. Pressure can be adjusted by evacuated tubes. High voltage is applied across electrodes and current starts flowing through the tube.

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