Physics · Electrical energy and power, electrical resistivity and conductivity
The heat developed in a system is proportional to the current through it. Then
The heat developed in a system is proportional to the current through it. Then
- A. it cannot be Thomson heat.
- B. it cannot be Peltier heat
- C. it cannot be Joule heat.
- D. it can be any of the three heats mentioned above
Step-by-step solution
Joule heat is proportional to the square of the current (I^2R), not to the current itself, whereas Thomson heat and Peltier heat are both proportional to the current linearly. Therefore, when heat developed is proportional to current, it cannot be Joule heat.
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