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← ScienceWhich consequence results when thermal insulation fails in a thermoelectric generator operating at cryogenic temperatures?
A)Increased overall power output
B)Enhanced Seebeck coefficient
C)Reduced Carnot efficiency✓
D)Suppressed Peltier effect
💡 Explanation
Reduced Carnot efficiency results because parasitic heat transfer overrides intended temperature gradients; the thermal short-circuiting undermines energy conversion, rather than aiding its performance like enhancement of Seebeck coefficient would under ideal operating conditions, therefore power is also reduced.
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