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Which outcome limits electron flow within silicon-based transistors?

A)Forbidden energy band gap widening
B)Increased phonon scattering frequency
C)Increased electron-hole recombination rate
D)Uncontrolled quantum tunneling occurrence

💡 Explanation

A wider band gap impedes electron movement because electrons require more energy to jump into the conduction band; widening occurs due to various material or electrical stressors, therefore limiting transistor performance, rather than options related only to electron scattering.

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