Measurement and Instrumentation
A DC potentiometer is the best means available for the measurement of DC voltage because

 None of above.
 It is possible to standardize before a measurement is undertaken.
  It is based on null balance technique.
 The precision in measurment is independent of the type of the defector used.

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Measurement and Instrumentation
A 8085 microprocessor consist of

 Arithmetic and Logic Units (ALU), Control Unit (CU), Registers and Memory.
 Arithmetic and Logic Units (ALU), Control Unit (CU), Registers and I/O devices.
 Arithmetic and Logic Units (ALU), Control Unit (CU) and I/O devices.
 Arithmetic and Logic Units (ALU), Control Unit (CU) and Registers.

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