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← ScienceWhich outcome limits sensor precision when electrons utilize a Single-Electron Transistor (SET)?
A)Quantization of charge dominates measurements✓
B)Thermal expansion degrades dielectric spacing
C)Electromagnetic interference masks readings
D)Mechanical stress exceeds resonant frequency
💡 Explanation
Charge quantization fundamentally limits electron precision because the *Coulomb blockade* prevents continuous current flow; therefore, only discrete electron tunneling events contribute to the current, rather than a steady-state analytical current.
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