In the thermocouple open-circuit reading data, which range is listed as 10-20 MV?

In the thermocouple open-circuit reading data, which range is listed as 10-20 MV?

• A. 10-20 MV
• B. 2-4 MV
• C. 20-30 MV
• D. 15-25 MV

Answer: (A)

Open-circuit thermocouple voltage is given in millivolts, since no load is connected to the circuit. The data table uses MV to denote millivolts, and the range 10-20 MV simply means the emf span from 10 to 20 millivolts. Among the options, the one that matches this exact label—10-20 MV—is the correct pick. This range represents a specific open-circuit voltage corresponding to a certain temperature difference at the thermocouple junction, and it’s the only option that lists the voltage in that 10–20 millivolt span.

Open-circuit thermocouple voltage is given in millivolts, since no load is connected to the circuit. The data table uses MV to denote millivolts, and the range 10-20 MV simply means the emf span from 10 to 20 millivolts. Among the options, the one that matches this exact label—10-20 MV—is the correct pick. This range represents a specific open-circuit voltage corresponding to a certain temperature difference at the thermocouple junction, and it’s the only option that lists the voltage in that 10–20 millivolt span.