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Which effect occurs when applying intense pressure to germanium?

A)Band gap experiences significant reduction
B)Increased phonon scattering occurs internally
C)Grain boundary dislocations quickly accumulate
D)Giant magnetoresistance effect becomes dominant

💡 Explanation

Applying pressure narrows the band gap of semiconductors due to increased atomic interaction; therefore, resistance drops because electron mobility increases through the conduction band, rather than other structural defects being the primary driver.

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