Insulator

Real World Example

Imagine trying to carry a conversation in a crowded, noisy room where everyone is talking at once. Just as the noise in the room makes it difficult for your voice to travel clearly to the person you're speaking to, an insulator hinders the flow of electricity. In this analogy, the crowded room is like an insulator, obstructing the easy passage of sound, much like how an insulating material obstructs the flow of electric current.