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Read statements and select the correct option below.
A: A push-pull amplifier decreases harmonic distortion
B: Output has half-wave symmetry
B: Output has half-wave symmetry
- a)A and B are both correct and B is the correct reason for A
- b)A is correct and B is incorrect
- c)Both A and B are correct but B is not the correct reason for A
- d)Both A and B are incorrect
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Read statements and select the correct option below.A: A push-pull amp...
Both statements A and B are correct, but B is not the correct reason for A.
Explanation:
A push-pull amplifier is a type of amplifier circuit that uses two transistors (usually one NPN and one PNP) to amplify the input signal. It is designed to reduce harmonic distortion and provide a symmetrical output.
Statement A: A push-pull amplifier decreases harmonic distortion.
- This statement is correct. The push-pull amplifier configuration helps in reducing the harmonic distortion. The two transistors in the circuit work in tandem to handle both halves of the input signal waveform. One transistor amplifies the positive half of the waveform, while the other amplifies the negative half. By using complementary transistors, the distortion caused by one transistor can be canceled out by the other. This results in lower harmonic distortion in the output signal.
Statement B: Output has half-wave symmetry.
- This statement is also correct. In a push-pull amplifier, the output waveform is symmetrical with respect to the zero voltage axis. This means that the positive and negative halves of the waveform are mirror images of each other. The push-pull configuration ensures that both halves of the input signal are amplified and added together to create a symmetrical output waveform.
Reasoning:
The reason given in statement B is not the correct reason for statement A. The half-wave symmetry of the output waveform is a characteristic of push-pull amplifiers, but it is not directly related to the reduction of harmonic distortion. The reduction of harmonic distortion is achieved through cancellation of the distortion components by the complementary action of the two transistors in the push-pull configuration.
Conclusion:
Both statements A and B are correct, but the reason given in statement B is not the correct reason for statement A. The push-pull amplifier configuration helps in reducing harmonic distortion by canceling out the distortion components through the complementary action of the two transistors. The output waveform of a push-pull amplifier is symmetrical with respect to the zero voltage axis, exhibiting half-wave symmetry.
Explanation:
A push-pull amplifier is a type of amplifier circuit that uses two transistors (usually one NPN and one PNP) to amplify the input signal. It is designed to reduce harmonic distortion and provide a symmetrical output.
Statement A: A push-pull amplifier decreases harmonic distortion.
- This statement is correct. The push-pull amplifier configuration helps in reducing the harmonic distortion. The two transistors in the circuit work in tandem to handle both halves of the input signal waveform. One transistor amplifies the positive half of the waveform, while the other amplifies the negative half. By using complementary transistors, the distortion caused by one transistor can be canceled out by the other. This results in lower harmonic distortion in the output signal.
Statement B: Output has half-wave symmetry.
- This statement is also correct. In a push-pull amplifier, the output waveform is symmetrical with respect to the zero voltage axis. This means that the positive and negative halves of the waveform are mirror images of each other. The push-pull configuration ensures that both halves of the input signal are amplified and added together to create a symmetrical output waveform.
Reasoning:
The reason given in statement B is not the correct reason for statement A. The half-wave symmetry of the output waveform is a characteristic of push-pull amplifiers, but it is not directly related to the reduction of harmonic distortion. The reduction of harmonic distortion is achieved through cancellation of the distortion components by the complementary action of the two transistors in the push-pull configuration.
Conclusion:
Both statements A and B are correct, but the reason given in statement B is not the correct reason for statement A. The push-pull amplifier configuration helps in reducing harmonic distortion by canceling out the distortion components through the complementary action of the two transistors. The output waveform of a push-pull amplifier is symmetrical with respect to the zero voltage axis, exhibiting half-wave symmetry.
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Community Answer
Read statements and select the correct option below.A: A push-pull amp...
A push-pull amplifier reduced harmonic distortion as it cancels even harmonic frequencies. Net current in load I = K(I1 - I2)
Due to this, even harmonics cancel out and decrease harmonic distortion. Thus output has half-wave symmetry.
Due to this, even harmonics cancel out and decrease harmonic distortion. Thus output has half-wave symmetry.
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Read statements and select the correct option below.A: A push-pull amplifier decreases harmonic distortionB: Output has half-wave symmetrya)A and B are both correct and B is the correct reason for Ab)A is correct and B is incorrectc)Both A and B are correct but B is not the correct reason for Ad)Both A and B are incorrectCorrect answer is option 'C'. Can you explain this answer?
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