Content protected from screenshots
GKFix.in
Current Affairs
General Knowledge
Categories
Concept Builder Quiz
About Us
Start Quiz
GKFix.in
Home
Current Affairs
General Knowledge
Categories
Concept Builder Quiz
Start Quiz
GKFix MCQ Question
Test your knowledge and learn something new
Home
ELECTRONIC DEVICES
Question #90642
Back to Home
View All ELECTRONIC DEVICES Questions
19 Views
Question
What is the fundamental principle behind electron emission in vacuum tubes?
A. Photoelectric effect
B. Field emission
C. Secondary emission
D. Thermionic emission due to heating of the cathode
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
What is the primary reason for the exponential rise in diode current with increasing forward voltage...
11
A convex lens forms a real image of an object. If the object is moved closer to the lens, what happe...
8
What is the magnification produced by a convex lens when an object is placed at 2f?
17
What action did DGCA take regarding safety defects found at airports?
(Current Affairs)
51
Which Indian state came fully under monsoon cover on June 18, leading to heavy rainfall and thunders...
(Current Affairs)
46