Consider the following statements A and B and identify the correct answers given below. A. Peltier coefficient is numerically equal to the potential difference across the junctions of the thermocouple through which current is flowing. B. According to Thomson, energy is neither absorbed nor evolved at the junction of a thermocouple but is observed or evolved only along the lengths of both the conductors.

Step-by-step solution

Statement A: Peltier coefficient is numerically equal to the potential difference across the junctions of the thermocouple through which current is flowing. ✅ True — By definition, the Peltier coefficient (π) is the amount of emf (potential difference) per unit current at the junction. Statement B: According to Thomson, energy is neither absorbed nor evolved at the junction of a thermocouple but only along the lengths of both conductors. ❌ False — This is not correct. The Thomson effect states that heat is absorbed