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In a common-emitter amplifier, the input AC signal to be amplified is applied across:
- a)forward biased EB junction
- b)reverse biased CB Junction
- c)reverse biased BE junction
- d)forward biased CB junction
Correct answer is option 'A'. Can you explain this answer?
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In a common-emitter amplifier, the input AC signal to be amplified is ...
- Amplifier: An electronic device that increases the voltage, current, or power of a signal is called an amplifier.
- Amplifiers are used in wireless communications and broadcasting, and in audio equipment of all kinds.
- Common emitter amplifier: It is a three basic single-stage bipolar junction transistor and is used as a voltage amplifier.
- The input is applied to the base, and the output is taken from the collector, the common terminal for both circuits is the emitter.
The correct option is 1.
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In a common-emitter amplifier, the input AC signal to be amplified is ...
Input Signal Application in Common-Emitter Amplifier
In a common-emitter amplifier, the input AC signal to be amplified is applied across the forward biased EB junction.
Explanation:
- **Common-Emitter Configuration**: In a common-emitter amplifier circuit, the transistor is connected in such a way that the emitter terminal is common between the input and output circuits.
- **Forward Biased EB Junction**: The input AC signal is applied across the forward biased EB (Emitter-Base) junction of the transistor. This means that the base-emitter junction is forward biased, allowing the input signal to control the transistor's operation.
- **Signal Amplification**: When the input signal is applied across the forward biased EB junction, it modulates the current flowing through the transistor, causing a larger amplified version of the input signal to appear at the output.
- **Transistor Operation**: The input signal applied at the base terminal controls the transistor's collector current, resulting in amplification of the input signal.
- **Output Signal**: The amplified output signal is taken from the collector terminal of the transistor.
In summary, in a common-emitter amplifier circuit, the input AC signal is applied across the forward biased EB junction to control the transistor's operation and achieve signal amplification.
In a common-emitter amplifier, the input AC signal to be amplified is applied across the forward biased EB junction.
Explanation:
- **Common-Emitter Configuration**: In a common-emitter amplifier circuit, the transistor is connected in such a way that the emitter terminal is common between the input and output circuits.
- **Forward Biased EB Junction**: The input AC signal is applied across the forward biased EB (Emitter-Base) junction of the transistor. This means that the base-emitter junction is forward biased, allowing the input signal to control the transistor's operation.
- **Signal Amplification**: When the input signal is applied across the forward biased EB junction, it modulates the current flowing through the transistor, causing a larger amplified version of the input signal to appear at the output.
- **Transistor Operation**: The input signal applied at the base terminal controls the transistor's collector current, resulting in amplification of the input signal.
- **Output Signal**: The amplified output signal is taken from the collector terminal of the transistor.
In summary, in a common-emitter amplifier circuit, the input AC signal is applied across the forward biased EB junction to control the transistor's operation and achieve signal amplification.
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In a common-emitter amplifier, the input AC signal to be amplified is applied across:a)forward biased EB junctionb)reverse biased CB Junctionc)reverse biased BE junctiond)forward biased CB junctionCorrect answer is option 'A'. Can you explain this answer?
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