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 #90624
Back to Home
View All ELECTRONIC DEVICES Questions
8 Views
Question
What is the primary function of a heated cathode in a vacuum tube?
A. To absorb electrons
B. To emit electrons through thermionic emission
C. To regulate voltage
D. To cool the anode
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
What happens to donor atoms in an n-type semiconductor at room temperature?
7
Why is the final image in a compound microscope virtual?
6
What happens to the depletion region in reverse bias?
6
What is the projected percentage of urbanized land in Delhi-NCR by 2033 according to a recent study?
(Current Affairs)
8
Ajinkya Rahane has stepped down as captain of which domestic cricket team ahead of the 2025–26 Ran...
(Current Affairs)
9