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← ScienceWhich mechanism dominates charge storage when a polymer dielectric undergoes electrical breakdown?
A)Maxwell-Wagner polarization effect
B)Space charge limited conduction✓
C)Debye relaxation in polymer chains
D)Ionic conductivity dominates carrier transport
💡 Explanation
Electrical breakdown creates trapped electrons in polymer dielectrics, so space charge limited conduction dominates due to the injected charge exceeding the material's capacity for free carriers. Therefore stored charge becomes localized, rather than uniformly distributed like in Debye relaxation.
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