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Electronics and Communication Engineering - Electromagnetic Field Theory

Exercise : Electromagnetic Field Theory - Section 14
26.
From an n channel JFET for VDS constant and if VGS is made more negative, pinch off would occur at
higher value of drain current
saturation value of drain current
zero drain current
gate current equal to drain current
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
The diode and the moving coil milliammeter of figure are assumed to be ideal. The meter reading is
0.1 mA
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Measurement of Hall coefficient enables the determination of
transportation factor decreases and a increases
transportation factor increases and a increases
transportation factor increases and a decreases
transportation factor decreases and a decreases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
The V-I characteristic of a semi-conductor diode is shown in figure. From this figure it can be concluded that
The diode is a silicon diode
The diode is a germanium diode
Break down voltage of the diode is 0.7 V
At 1 V rated current will pass through the diode
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
The process of deliberately adding impurity to a semi-conductor material is called
impurification
pollution
deionisation
doping
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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