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← ScienceWhich phenomenon increases when metallic work functions are lowered?
A)Thermionic emission current✓
B)Superconducting critical temperature
C)Ferromagnetic saturation magnetization
D)Hall effect voltage output
💡 Explanation
Thermionic emission increases exponentially as the material's work function decreases because the Boltzmann distribution predicts more electrons have sufficient energy to overcome the surface potential barrier through *thermoelectric effect*. therefore it increases the current, rather than affecting bulk magnetic or transport properties under standard conditions.
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