is a wall a conductor or insulator ?

Typically it would be an insulator, depending on the material used for the wall.

To determine whether a wall is a conductor or insulator, we first need to understand what these terms mean.

A conductor is a material that allows the flow of electric charge or heat easily. It readily conducts electricity due to the presence of free electrons or ions that can move throughout the material. Materials like metals, such as copper and aluminum, are good conductors of electricity.

On the other hand, an insulator is a material that does not easily allow the flow of electric charge or heat. Insulators have tightly bound electrons that do not move freely. Examples of insulators include rubber, wood, and plastic.

Now, coming to the question of whether a wall is a conductor or an insulator, it commonly depends on the composition of the wall.

Most walls, especially those made of bricks, concrete, or drywall, are considered insulators because they do not conduct electricity well. These materials have high resistivity and do not allow electric charge to flow freely. Therefore, they are not suitable for electrical wiring or for directly conducting electricity.

However, it's important to note that some walls may have electrical wiring embedded within them, which could make them act as conductors for electricity. In such cases, the wall itself is not a conductor, but rather the wiring within it allows the flow of electricity.

To determine whether a specific wall is a conductor or an insulator, you can visually inspect the wall for any embedded electrical components or consult the building plans to understand the materials used.