Just as conductors are improperly viewed as superconductors, so are insulators often mistakenly treated as perfect insulators, rather than very high resistances, which is the more accurate MODEL.

• 有人会把所谓“导体”视为超导体，同样也会把所谓“绝缘体”看作完全不导电的介质。其实准确说来，绝缘体是一些电阻非常大的介质。