Electronics and Communication Engineering Questions and Answers
Prepare for your Electronics and Communication Engineering exams/aptitude tests, assess your knowledge of electronics and communication equipment with these ECE questions and answers.
Prepare for your Electronics and Communication Engineering exams/aptitude tests, assess your knowledge of electronics and communication equipment with these ECE questions and answers.
Both A and R are true and R is correct explanation of A
Both A and R are true but R is not a correct explanation of A
A is true but R is false
A is false but R is true
Correct answer is A
At 20°C, 4 nA, at 30°C, 8 nA, at 40°C, 16 nA, at 50°C, 32 nA.
7 mA
6.3 mA
0.7 mA
0
Correct answer is B
I = (7 - 0.7)/1000
The types of carriers in a semiconductor are
1
2
3
4
Correct answer is B
Holes and electrons.
In a degenerate n type semiconductor material, the Fermi level
is in valence band
is in conduction band
is at the centre in between valence and conduction bands
is very near valence band
Correct answer is B
This is due to high level of doping.
Secondary emission is always decremental.
True
False
Cannot say
It depends
Correct answer is B
No explanation has been provided for this answer.