answersLogoWhite

0


Best Answer

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

User Avatar

Wiki User

βˆ™ 10y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

βˆ™ 8mo 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.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why filament is needed in CRO?
Write your answer...
Submit
Still have questions?
magnify glass
imp