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Which of the following is not the characteristic of the chopper amplifier pH meter?
- a)Direct voltage from the electrodes is chopped at the main frequency
- b)Using choppers for high-input resistance gives rise to spikes of waveforms at the output
- c)It leads to stability in DC output of a phase-sensitive rectifier
- d)Magnitude of surge increases in the glass electrode output
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which of the following is not the characteristic of the chopper ampli...
The use of a chopper amplifier in the pH meter leads to zero instability. It leads to various other problems for high-input resistance.
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Which of the following is not the characteristic of the chopper ampli...
Characteristics of Chopper Amplifier pH Meters
Chopper amplifier pH meters are specialized devices used for measuring pH levels with high accuracy and stability. However, not all characteristics listed in the options accurately describe their functionality.
Understanding the Options
- Option A: Direct voltage from the electrodes is chopped at the main frequency.
This is a true characteristic as chopper amplifiers utilize chopping techniques to convert the slow varying DC signals into AC, which can be amplified effectively.
- Option B: Using choppers for high-input resistance gives rise to spikes of waveforms at the output.
This is also correct; the chopper mechanism can introduce transients or spikes in the output due to the rapid switching of signals.
- Option C: It leads to stability in DC output of a phase-sensitive rectifier.
This option is incorrect in the context of chopper amplifiers. While phase-sensitive rectifiers can enhance stability, the primary purpose of a chopper amplifier is to reduce drift and noise rather than inherently stabilize the DC output.
- Option D: Magnitude of surge increases in the glass electrode output.
This statement is accurate as the glass electrode output can indeed experience surges, particularly if the input impedance is high, leading to potential spikes.
Conclusion
In summary, Option C is the correct answer as it does not accurately characterize the chopper amplifier pH meter's functionality. The primary role of the chopper is noise reduction and signal enhancement, rather than ensuring stability in the DC output of a phase-sensitive rectifier. Understanding these principles is crucial for effectively using and interpreting pH measurements in various applications.
Chopper amplifier pH meters are specialized devices used for measuring pH levels with high accuracy and stability. However, not all characteristics listed in the options accurately describe their functionality.
Understanding the Options
- Option A: Direct voltage from the electrodes is chopped at the main frequency.
This is a true characteristic as chopper amplifiers utilize chopping techniques to convert the slow varying DC signals into AC, which can be amplified effectively.
- Option B: Using choppers for high-input resistance gives rise to spikes of waveforms at the output.
This is also correct; the chopper mechanism can introduce transients or spikes in the output due to the rapid switching of signals.
- Option C: It leads to stability in DC output of a phase-sensitive rectifier.
This option is incorrect in the context of chopper amplifiers. While phase-sensitive rectifiers can enhance stability, the primary purpose of a chopper amplifier is to reduce drift and noise rather than inherently stabilize the DC output.
- Option D: Magnitude of surge increases in the glass electrode output.
This statement is accurate as the glass electrode output can indeed experience surges, particularly if the input impedance is high, leading to potential spikes.
Conclusion
In summary, Option C is the correct answer as it does not accurately characterize the chopper amplifier pH meter's functionality. The primary role of the chopper is noise reduction and signal enhancement, rather than ensuring stability in the DC output of a phase-sensitive rectifier. Understanding these principles is crucial for effectively using and interpreting pH measurements in various applications.
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Which of the following is not the characteristic of the chopper amplifier pH meter?a)Direct voltage from the electrodes is chopped at the main frequencyb)Using choppers for high-input resistance gives rise to spikes of waveforms at the outputc)It leads to stability in DC output of a phase-sensitive rectifierd)Magnitude of surge increases in the glass electrode outputCorrect answer is option 'C'. Can you explain this answer? for GATE 2025 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Which of the following is not the characteristic of the chopper amplifier pH meter?a)Direct voltage from the electrodes is chopped at the main frequencyb)Using choppers for high-input resistance gives rise to spikes of waveforms at the outputc)It leads to stability in DC output of a phase-sensitive rectifierd)Magnitude of surge increases in the glass electrode outputCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is not the characteristic of the chopper amplifier pH meter?a)Direct voltage from the electrodes is chopped at the main frequencyb)Using choppers for high-input resistance gives rise to spikes of waveforms at the outputc)It leads to stability in DC output of a phase-sensitive rectifierd)Magnitude of surge increases in the glass electrode outputCorrect answer is option 'C'. Can you explain this answer?.
Which of the following is not the characteristic of the chopper amplifier pH meter?a)Direct voltage from the electrodes is chopped at the main frequencyb)Using choppers for high-input resistance gives rise to spikes of waveforms at the outputc)It leads to stability in DC output of a phase-sensitive rectifierd)Magnitude of surge increases in the glass electrode outputCorrect answer is option 'C'. Can you explain this answer? for GATE 2025 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about Which of the following is not the characteristic of the chopper amplifier pH meter?a)Direct voltage from the electrodes is chopped at the main frequencyb)Using choppers for high-input resistance gives rise to spikes of waveforms at the outputc)It leads to stability in DC output of a phase-sensitive rectifierd)Magnitude of surge increases in the glass electrode outputCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for GATE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is not the characteristic of the chopper amplifier pH meter?a)Direct voltage from the electrodes is chopped at the main frequencyb)Using choppers for high-input resistance gives rise to spikes of waveforms at the outputc)It leads to stability in DC output of a phase-sensitive rectifierd)Magnitude of surge increases in the glass electrode outputCorrect answer is option 'C'. Can you explain this answer?.
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Which of the following is not the characteristic of the chopper amplifier pH meter?a)Direct voltage from the electrodes is chopped at the main frequencyb)Using choppers for high-input resistance gives rise to spikes of waveforms at the outputc)It leads to stability in DC output of a phase-sensitive rectifierd)Magnitude of surge increases in the glass electrode outputCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Which of the following is not the characteristic of the chopper amplifier pH meter?a)Direct voltage from the electrodes is chopped at the main frequencyb)Using choppers for high-input resistance gives rise to spikes of waveforms at the outputc)It leads to stability in DC output of a phase-sensitive rectifierd)Magnitude of surge increases in the glass electrode outputCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Which of the following is not the characteristic of the chopper amplifier pH meter?a)Direct voltage from the electrodes is chopped at the main frequencyb)Using choppers for high-input resistance gives rise to spikes of waveforms at the outputc)It leads to stability in DC output of a phase-sensitive rectifierd)Magnitude of surge increases in the glass electrode outputCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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