IndiaBIX

Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 10
1.
At a P-N junction, the potential barrier is due to the charges on either side of the junction, which consists of
fixed donor and acceptor ions
majority carriers only
minority carriers only
both majority and minority carriers
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
In a vacuum triode μ = rpgm.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
The material which has zero temperature coefficient of resistance is
manganin
porcelain
carbon
aluminium
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
When the light falling on a photodiode increases, the reverse minority current
increases
increases or decreases
decreases
remains the same
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
When a ferromagnetic substance is magnetised, small changes in dimensions occur. Such a phenomenon is known as
magnetic hystresis
magnetic expansion
magneto striction
magneto calorisation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers