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JAMB Physics 2008 Question 19

Question 19

Temperature and Thermometers

The thermometric property of a thermocouple is the change in

  1. A.equivalent resistance.
  2. B.electromotive force.
  3. C.colour.
  4. D.pressure.
Show the answer and explanation

Answer: B (electromotive force.)

Explanation

A thermocouple produces an e.m.f. that changes with the temperature difference between its two junctions.