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Transistor Circuit Configurations Video Lecture - JEE
FAQs on Transistor Circuit Configurations
| 1. What are the different transistor circuit configurations? |  |
Ans. The different transistor circuit configurations are: - Common Emitter (CE) configuration: In this configuration, the emitter terminal is common to both the input and output circuits. - Common Base (CB) configuration: In this configuration, the base terminal is common to both the input and output circuits. - Common Collector (CC) configuration: In this configuration, the collector terminal is common to both the input and output circuits.
| 2. What is the purpose of transistor circuit configurations? | |
Ans. The purpose of transistor circuit configurations is to provide different characteristics and performances based on the desired application. Each configuration has its own advantages and disadvantages in terms of voltage gain, current gain, input impedance, and output impedance.
| 3. What are the main differences between common emitter, common base, and common collector configurations? | |
Ans. The main differences between the three transistor circuit configurations are as follows: - Common Emitter (CE): It provides high voltage gain and moderate current gain. The input impedance is medium, while the output impedance is high. - Common Base (CB): It provides high current gain and low voltage gain. The input impedance is low, while the output impedance is high. - Common Collector (CC): It provides high voltage gain and unity current gain. The input impedance is high, while the output impedance is low.
| 4. Which transistor circuit configuration is most commonly used? | |
Ans. The common emitter (CE) configuration is the most commonly used transistor circuit configuration. It offers high voltage gain and moderate current gain, making it suitable for various applications, including amplification and switching.
| 5. Can a transistor be used in multiple circuit configurations simultaneously? | |
Ans. No, a transistor cannot be used in multiple circuit configurations simultaneously. Each transistor can only be connected in one specific configuration at a time to achieve the desired characteristics and performance.
Text Transcript from Video
hello friends this video on
semiconductors part 23 is brought to you
by exam Fiat form no move your from exam
please make sure that you have watched
all the videos to the part 22 before
going ahead with part 23 we will now
talk about transistor circuit
configurations now a transistor has key
different configurations in which it is
arranged in a circuit like Atilla I was
telling you only about the structure of
the transistor what does it consist of
it has a meter it has basic as collector
how do we bias a transistor I was
telling only about those things now when
we connect the transistor in a circuit
there are three ways in which we can
connect the transistor in cycle so these
different ways are known as transistor
configurations right so what are those
quantitate three configurations one is
called common emitter configuration when
is common base configuration and the
other third one is common collector
configuration the configuration or the
connection of a transistor in a cell it
should be such that one of the emitter
base or collector terminal is common to
the other two either emitter is common
to base and collector or DS is common to
emitter and collector or collector is
forming two emitter and base so one of
one out of these three should be common
to the other two so let us look at the
common emitter configuration if you look
at it this is your emitter this is base
and this is collector so here you see
NHIN is the one which is grounded
so that means emitter is common to this
base so we have written as the input
that means the input is applied between
emitter and base and the output can be
obtained between collector and emitter
so emitter acts as a reference between
the base and the collector so if I say
that what if I connect the complete
circuit here I can see that base a
medium compromises of the input circuit
and emitter collector forms the output
circuit like let us look at the common
base configuration here if you see
base is the one which is grounded so the
one the terminal which is ground F is
the common terminal because sometimes
you also have questions where you are
given complicated diagrams and then you
are asked tell me how the transistor is
arranged Emily what is the configuration
of the transistor in this circuit so
always remember that the one which is
common between the other two common with
the other two is always grounded so here
your emitter is grounded so it is common
to base and collected in this case the
base is grounded so base is common to a
meter and again base is common to
collector so in the base so here base
emitter forms their input circuit base
collector forms the output circuit in
the third one collector is the common
one so here if you see collector is
grounded right so base collector circuit
forms the input circuit and emitter
collector circuit forms the output side
right okay so these are the three
different transistor circuit
configurations how we were out of these
common emitter is the most common
transistor circuit configuration so here
also whatever we will study further we
will use common emitter configuration
thank you please visit exam few calm to
watch free educational videos try free
online tests get the best quality study
materials study from the best tutors and
mentors and much more thank you once
again
semiconductors part 23 is brought to you
by exam Fiat form no move your from exam
please make sure that you have watched
all the videos to the part 22 before
going ahead with part 23 we will now
talk about transistor circuit
configurations now a transistor has key
different configurations in which it is
arranged in a circuit like Atilla I was
telling you only about the structure of
the transistor what does it consist of
it has a meter it has basic as collector
how do we bias a transistor I was
telling only about those things now when
we connect the transistor in a circuit
there are three ways in which we can
connect the transistor in cycle so these
different ways are known as transistor
configurations right so what are those
quantitate three configurations one is
called common emitter configuration when
is common base configuration and the
other third one is common collector
configuration the configuration or the
connection of a transistor in a cell it
should be such that one of the emitter
base or collector terminal is common to
the other two either emitter is common
to base and collector or DS is common to
emitter and collector or collector is
forming two emitter and base so one of
one out of these three should be common
to the other two so let us look at the
common emitter configuration if you look
at it this is your emitter this is base
and this is collector so here you see
NHIN is the one which is grounded
so that means emitter is common to this
base so we have written as the input
that means the input is applied between
emitter and base and the output can be
obtained between collector and emitter
so emitter acts as a reference between
the base and the collector so if I say
that what if I connect the complete
circuit here I can see that base a
medium compromises of the input circuit
and emitter collector forms the output
circuit like let us look at the common
base configuration here if you see
base is the one which is grounded so the
one the terminal which is ground F is
the common terminal because sometimes
you also have questions where you are
given complicated diagrams and then you
are asked tell me how the transistor is
arranged Emily what is the configuration
of the transistor in this circuit so
always remember that the one which is
common between the other two common with
the other two is always grounded so here
your emitter is grounded so it is common
to base and collected in this case the
base is grounded so base is common to a
meter and again base is common to
collector so in the base so here base
emitter forms their input circuit base
collector forms the output circuit in
the third one collector is the common
one so here if you see collector is
grounded right so base collector circuit
forms the input circuit and emitter
collector circuit forms the output side
right okay so these are the three
different transistor circuit
configurations how we were out of these
common emitter is the most common
transistor circuit configuration so here
also whatever we will study further we
will use common emitter configuration
thank you please visit exam few calm to
watch free educational videos try free
online tests get the best quality study
materials study from the best tutors and
mentors and much more thank you once
again
About this Video
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Apr 19, 2026 Last updated
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