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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 8
6.
In a JFET, the drain current is maximum when
VGS = 0
VGS is not zero but is slightly negative
VGS is negative
VGS is negative and equal to VDS
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
A potential difference is developed across a current carrying metal strip when the strip is placed in a transverse magnetic field. The above effect is known as
Fermi's effect
Photo electric effect
Joule's effect
Hall's effect
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
In a zener diode
forward voltage rating is high
negative resistance characteristics exists
sharp breakdown occurs at low reverse voltage
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Which one of the following bipolar transistors has the highest current gain bandwidth Product (fr) for similar geometry?
NPN germanium transistor
NPN silicon transistor
PNP germanium transistor
PNP silicon transistor
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The depletion layer across a P+ n junction lies
mostly in the P+ region
mostly in n region
equally in both the P+ and n-region
entirely in the P+ region
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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