In which of the following ways can zero drift be reduced in pH meters?
A. Using filter
B. Giving zero adjustment arrangement
C. Keeping the input impedance high
D. Using balanced and differential amplifiers
Answer:D
In which of the following ways can zero drift be reduced in pH meters?
A. Using filter B. Giving zero adjustment arrangement C. Keeping the input impedance high D. Using balanced and differential amplifiers
Explanation: Zero drift be reduced in pH meters using balanced and differential amplifiers. Their response to external signals are additive and to internal noise are subtractive.