Question

why cathode Ray has high voltage and low pressure​

Answer 1

Answer:

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Explanation:

Low pressure means that less number of gas molecules is present in the discharge tube. If the number of molecules is very less, the collisionws between the electrons which move towards the anode with a high velocity and the gas molecules and formation of cathode rays takes place. Moreover, high voltage increases the kinetic energy of the electrons which in turn increases the probability of removal of electrons form the gaseous molecules.

Answer 2

Answer:

Low pressure means that fewer gas molecules is present in the discharge tube. ... Moreover, high voltage increases the kinetic energy of the electrons which in turn increases the probability of removal of electrons from the gaseous molecules.

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