Meters and troubleshootingQuestion 746 of 1506

What is the size of the voltage from a thermocouple for most temperature ranges?

  1. Fractions of a microvolt
  2. Hundreds of volts
  3. Tens of millivolts
  4. Tens of volts
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Correct answer: Tens of millivolts

The signals are small, so they are hard to measure accurately.

Source: Lessons in Electric Circuits I: DC (Kuphaldt), 9.5: Thermocouples

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Questions last reviewed: 18 October 2026