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← ScienceWhich consequence results when silicon carbide lattice impurities increase?
A)Increased Hall effect voltage drop
B)Reduced threshold breakdown voltage✓
C)Enhanced thermal conductivity magnitude
D)Decreased intrinsic carrier concentration
💡 Explanation
Higher impurity concentrations introduce more defects, causing increased electron scattering and reduced mean free path, thereby lowering the breakdown voltage because impact ionization occurs at lower fields, therefore voltage declines, where threshold increases do not occur rather than electrical insulators forming.
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