Electronics and Communication Engineering - Analog Electronics - Discussion
Discussion Forum : Analog Electronics - Section 1 (Q.No. 21)
21.
In the amplifier circuit of figure hfe = 100 and hie = 1000 Ω. The voltage gain of amplifier is about
Answer: Option
Explanation:
.
Discussion:
6 comments Page 1 of 1.
Chenelyn Cedron said:
9 years ago
It should be clear that the given circuit is a common collector amplifier and all common collector amplifiers have voltage gain approximately equal to 1. It means that the output will simply "follow" the input. That is why this configuration is also called as an emitter follower.
(1)
Rohit kumar said:
1 decade ago
How value is placed?
M G REDDY said:
1 decade ago
Option is B since (vo/vi).
No need to bother about Re value, anyhow it gets cancelled.
No need to bother about Re value, anyhow it gets cancelled.
Vijay said:
7 years ago
@Chenelyn.
The voltage is taken from collector Vcc. And the emitter is the one that indicates current flow which is grounded so this is CE amplifier.
The voltage is taken from collector Vcc. And the emitter is the one that indicates current flow which is grounded so this is CE amplifier.
Umair said:
7 years ago
What is hfe and hie? Please explain.
Chris said:
6 years ago
@Vijay.
This is a common collector amplifier. In a common emitter the output voltage is taken on the collector side.
This is a common collector amplifier. In a common emitter the output voltage is taken on the collector side.
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