MCQs on Analog Electronics

Page 15 of 33. Go to page
01․ In the diode equation, the voltage equivalent of temperature
11600 / T.
T / 11600.
T × 11600.
11600 / T2.

Under construction.
02․ Barrier potential at the temperature (25°C) is 0.7 V, its value at 125°C is
0.5 V.
0.3 V.
0.9 V.
0.7 V.

Under construction.
03․ When a reverse bias is applied to a diode, it will
raise the potential barrier.
lower the potential barrier.
increases the majority carrier an electric current greatly.
none of these.

Under construction.
04․ Field effect transistor (FET) operates on
majority carriers only.
minority carries only .
positive charged ions only.
on both majority and minority carriers.

Under construction.
05․ Junction field effect transistors (JFET) contain how many diodes?
4.
3.
2.
1.

Under construction.
06․ A U shaped, opposite-polarity material built near a JFET-channel center is called the
gate.
block.
drain.
heat sink.

Under construction.
07․ In the constant-current region, how will the IDS change in an n-channel JFET?
As VGS decreases ID decreases.
As VGS increases ID increases.
As VGS decreases ID remains constant.
As VGS increases ID remains constant.

Under construction.
08․ What is the input impedance of a common-gate configured JFET?
Very low.
Low.
High.
Very high.

Under construction.
09․ How will electrons flow through a p-channel JFET?
From source to drain.
From source to gate.
From drain to gate.
From drain to source.

Under construction.
10․ When VGS = 0 V, a JFET is
an analog device.
cut off.
saturated.
an open switch.

Under construction.
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