Question

When a Coolidge tube is operated for some time it becomes hot. Where does the heat come from?

Answer 1

A Coolidge tube is operated for some time it becomes hot. The heat comes from kinetic energy of electrons.

Explanation:

Coolidge x ray tube

• It is the high vacuum and the heated filament uses the electron sources.
• In the x ray production, the gas in the tube is not involved, when the situation is not like cold cathode gas discharge tubes.
• The filament of the cathode is heated then it emits the electrons.
• The filament is hotter, then the emission of electron increases.
• The acceleration of the electron towards the positive charge of anode then the electron strike the anode and the direction changed and continuous ranges of energies are emitted.
• The maximum energy of the electron is equal to the electrons kinetic energy when anode gets strike.
• Kinetic energy lose electrons. It is used for emitting x rays and the energy remains was absorbed by the target. The kinetic energy of electrons converts to thermal energy. The temperature increases the target, it heats the tube.

To learn more;

1. https://brainly.in/question/7678428
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