Materials that block the flow of electrons are called insulators. They are the opposite of conductors, which allow electrons to flow freely. Insulators have electrons that are tightly bound and cannot move easily, which prevents the flow of electric current.
Materials that block flow of electrons are called _____?
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Question context
This question is part of ⚡ Electrical Engineering within the broader 🛠️ Engineering Essentials subject and appears in the NTS National Testing Service preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.