In an amplifier coupling, capacitors are employed fora)Limiting the bandwidthb)Matching the impedancec)Preventing the DC mixing with input or outputd)Matching the outputCorrect answer is option 'C'. Can you explain this answer? - EduRev Electrical Engineering (EE) Question

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In an amplifier coupling, capacitors are employed for

a)
Limiting the bandwidth
b)
Matching the impedance
c)
Preventing the DC mixing with input or output
d)
Matching the output

Correct answer is option 'C'. Can you explain this answer?

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In an amplifier coupling, capacitors are employed fora)Limiting the ba...

Concept:

Amplifier

It is an electronic device which is used to increase the strength of the signal. Strength means power.

Consider the below CE amplifier as shown:

The advantage of the CE amplifier is its power gain will be high.

Coupling capacitors

These are used in an electronic circuit to pass the AC signal and blocks the unwanted DC components.

The unwanted DC signals comes form the electronic devices or preceding stage of the electronic circuit.
The reactive nature of the capacitor is useful for different behavior to different frequencies.
In audio systems, DC sources are used to power audio circuits.

Coupling capacitors are essential components in amplifier circuits. They are used to prevent interference of a transistor’s bias voltage by AC signals.

In most amplifier circuits, this is achieved by driving the signal to the base terminal of a transistor through a coupling capacitor.

Conclusion:

Option C is correct.

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Most Upvoted Answer

In an amplifier coupling, capacitors are employed fora)Limiting the ba...

Concept:

Amplifier

It is an electronic device which is used to increase the strength of the signal. Strength means power.

Consider the below CE amplifier as shown:

The advantage of the CE amplifier is its power gain will be high.

Coupling capacitors

These are used in an electronic circuit to pass the AC signal and blocks the unwanted DC components.

The unwanted DC signals comes form the electronic devices or preceding stage of the electronic circuit.
The reactive nature of the capacitor is useful for different behavior to different frequencies.
In audio systems, DC sources are used to power audio circuits.

Coupling capacitors are essential components in amplifier circuits. They are used to prevent interference of a transistor’s bias voltage by AC signals.

In most amplifier circuits, this is achieved by driving the signal to the base terminal of a transistor through a coupling capacitor.

Conclusion:

Option C is correct.

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In an amplifier coupling, capacitors are employed fora)Limiting the bandwidthb)Matching the impedancec)Preventing the DC mixing with input or outputd)Matching the outputCorrect answer is option 'C'. Can you explain this answer?

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