Why does an insulator have a high resistance?

Sometimes it's easier to think of electrical conductance.
Conductance is the opposite of resistance.
It's measured in mhos. Conductors conduct electricity well. They have high conductance. Insulators don't conduct very well. They have low conductance. Because resistance is the inverse of conductance, high conductance means low resistance and vice versa. Conductors conduct electricity well. They have high conductance and low resistance. Insulators don't conduct very well. They have low conductance and high resistance. This come from my book Conceptual Physics 11th edition by Paul G. Hewitt Pearson

Answered by Sinfultaz81 | 2024-06-10

Insulators have high resistance due to their atomic structure, which inhibits the movement of electrical charges. High resistivity in these materials results in a significant limitation on the flow of electricity. Consequently, insulators play a vital role in electrical safety by preventing unintended current flow.
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Answered by Sinfultaz81 | 2024-09-30