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← ScienceWhich consequence results when an electron encounters a sharply narrowing constriction within a semiconductor channel?
A)Quantized conductance staircase is observed✓
B)Ohmic behavior becomes strictly linear
C)Scattering probability exponentially decreases
D)Capacitance becomes frequency independent
💡 Explanation
A reduction in the channel width forces electron confinement which causes quantum effects; quantum confinement forms discrete energy levels; hence, steps in conductance are observed, because Conductance Quantization occurs rather than linear resistance, capacitance changes, or exponentially decreasing scattering.
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