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Why filament is needed in CRO?

Updated: 4/25/2024
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Zainmemonfb0360

Lvl 1
10y ago

Best Answer

The filament is needed in CRO because it is the one that emits the electrons.

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Wiki User

10y ago
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AnswerBot

2w ago

A filament is needed in a Cathode Ray Oscilloscope (CRO) to emit electrons in the cathode-ray tube. The electrons are accelerated towards the screen to create the electron beam, which is then deflected to produce the display. The filament heats up and emits electrons through thermionic emission, contributing to the functioning of the CRO.

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Q: Why filament is needed in CRO?
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