Which of the following is/are the components of a CRT? (a) Electron Gun (b)…
2015
Which of the following is/are the components of a CRT?
(a) Electron Gun
(b) Control Electrode
(c) Focusing Electrode
(d) Phosphor Coated Screen
Codes :
Answer: C. (a), (b), (c) and (d) — Answer: All four listed items are components of a CRT. Key components and their functions: Electron Gun: Generates and accelerates the stream of electrons…
- A.
(a) and (d)
- B.
(a), (b) and (d)
- C.
(a), (b), (c) and (d)
- D.
(a), (c) and (d)
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Correct answer: C
Answer: All four listed items are components of a CRT.
Key components and their functions:
Electron Gun: Generates and accelerates the stream of electrons toward the screen.
Control Electrode (Grid): Regulates the number of electrons in the beam, controlling brightness or intensity.
Focusing Electrode: Shapes and focuses the electron beam to form a sharp spot on the screen.
Phosphor-Coated Screen: Emits visible light when struck by electrons, creating the visible image.
Therefore, the correct choice is the one that includes the electron gun, control electrode, focusing electrode, and phosphor-coated screen.