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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 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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