A potentiometer wire 100 cm long has a potential gradient of 0.015 V/cm. A thermocouple balances at 40 cm. Its e.m.f. is:

  1. 0.6 V
  2. 2.67 V
  3. 0.06 V
  4. 6 V
Answer

A) 0.6 V

mathcalE = 0.015 40. SLO P-09-E-23 · Application

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