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Electronics and Communication Engineering - Analog Electronics

Exercise : Analog Electronics - Section 15
6.
In CE amplifier
input and output are in phase
phase difference between input and output is 30° to 90°
phase difference between input and output is 60° to 120°
output is inverted with respect to its input voltage
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The approximate value of input impedance of a common emitter amplifier with emitter resistance Re is given by
hie + AI Re
hie + (i + hfe) Re
hie
(1 + hfe) Re
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The collector voltage VC of the circuit shown in the given figure aside is approximately
2 V
4.6 V
8 V
8.6 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The symbol shown in figure represents a
P-channel MOSFET
UJT with N-type base
N-channel DEMOSFET with internal zener protection
P-channel DEMOSFET with internal zener protection
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The phase angle of a lag circuit is
between 0 and -90°
between 0 and +90°
90°
more than 90°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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