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Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

Discussion Forum : Electronic Devices and Circuits - Section 12 (Q.No. 17)
Electronic Devices and Circuits
17.
Secondary emission results
when temperature of metals is raised to a level above the crystallization temperature
when metals are subjected to strong magnetic fields
when light rays fall on the metal surface
when a high velocity beam of electrons strikes as metal surface
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.
Kunjal said:   9 years ago
Definition of Primary emission.

Electron emission arising from the irradiation including thermal heating or the application of a strong electric field to a surface.
Saurabh shah said:   9 years ago
I think the correct answer is D.
Jeeva said:   8 years ago
Yes, D only correct.
Saurabh kumar said:   5 years ago
Option D is correct.
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