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Assertion (A): The process of giving proper supply voltages and resistances for obtaining the desired Q-point is called biasing.
Reason (R): In order to produce distortion free output in amplifier circuits, the supply voltages and resistances in the circuit must be suitably chosen.
  • a)
    Both A and R are true and R is the correct explanation of A.
  • b)
    Both A and R are true but R is not the correct explanation of A.
  • c)
    A is true but R is false.
  • d)
    A is false but R is true.
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Assertion (A): The process of giving proper supply voltages and resist...
Assertion (A): The process of giving proper supply voltages and resistances for obtaining the desired Q-point is called biasing.

Reason (R): In order to produce distortion-free output in amplifier circuits, the supply voltages and resistances in the circuit must be suitably chosen.

Explanation:

Biasing in Amplifier Circuits:
Biasing is the process of establishing a suitable operating point for an amplifier circuit. It involves setting the DC operating conditions of the transistor or other active devices so that they operate within their linear region. The desired Q-point (quiescent point) is the operating point at which the transistor operates without any input signal. Biasing is necessary to ensure that the amplifier operates in a stable and linear manner.

Importance of Biasing:
Proper biasing is essential for achieving the desired performance characteristics of an amplifier circuit. It is important for the following reasons:

1. Stability: Proper biasing ensures that the amplifier circuit remains stable and does not oscillate or exhibit unwanted behavior.

2. Linearity: Biasing the amplifier circuit at the desired Q-point helps to ensure that the amplifier operates in its linear region. This is important for producing distortion-free output signals.

3. Thermal Stability: Biasing also helps in maintaining the thermal stability of the amplifier circuit. It ensures that the operating point remains relatively constant even with changes in temperature.

4. Maximum Output Swing: By choosing the appropriate biasing conditions, the amplifier can achieve maximum output swing without distortion.

Explanation of Assertion (A):
The assertion states that the process of giving proper supply voltages and resistances for obtaining the desired Q-point is called biasing. This is true as biasing involves setting the appropriate supply voltages and resistances to establish the desired operating point of the amplifier circuit.

Explanation of Reason (R):
The reason states that in order to produce distortion-free output in amplifier circuits, the supply voltages and resistances in the circuit must be suitably chosen. This is also true as the choice of supply voltages and resistances directly affects the biasing conditions and, in turn, the linearity and distortion characteristics of the amplifier.

Explanation of Correct Answer:
Both the assertion and the reason are true, and the reason correctly explains the assertion. The process of biasing involves selecting the proper supply voltages and resistances to achieve the desired Q-point and ensure distortion-free operation of the amplifier circuit. Therefore, the correct answer is option 'A' - Both A and R are true, and R is the correct explanation of A.
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Assertion (A): The process of giving proper supply voltages and resistances for obtaining the desired Q-point is called biasing.Reason (R): In order to produce distortion free output in amplifier circuits, the supply voltages and resistances in the circuit must be suitably chosen.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true but R is not the correct explanation of A.c)A is true but R is false.d)A is false but R is true.Correct answer is option 'A'. Can you explain this answer?
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