Given below is the block diagram of digital pH meter. Identify the unmarked component.
A. Filter
B. Buffer
C. A/D converter
D. D/A converter
Answer:C
Given below is the block diagram of digital pH meter. Identify the unmarked component.
A. Filter B. Buffer C. A/D converter D. D/A converter
Explanation: The unmarked component is A/D converter. Microprocessor operates only on digital data. Electrodes give analog signals. Hence, A/D converter must be present.