Content protected from screenshots
GKFix.in
General Knowledge
Categories
Concept Builder Quiz
About Us
Start Quiz
Home
My Profile
General Knowledge
Categories
Concept Builder
Start Quiz
Logout
GKFix MCQ Question
Test your knowledge and learn something new
Home
ELECTRONIC DEVICES
Question #90567
Back to Home
View All ELECTRONIC DEVICES Questions
28 Views
Question
Which phenomenon allows a cathode to emit electrons when heated?
A. Photoelectric effect
B. Thermionic emission
C. Electromagnetic induction
D. Capacitive coupling
Check Answer
Share on Twitter
Share on Facebook
Copy Link
Related Questions
What is the purpose of a rectifier circuit?
32
What is the primary function of a heated cathode in a vacuum tube?
28
How does the size of semiconductor devices compare to vacuum tubes?
33