What are insulating materials sometimes referred to as?

Insulating materials are often referred to as dielectrics because they possess the ability to resist electric current and, instead, allow electrostatic fields to pass. The term "dielectric" specifically describes materials that are poor conductors of electricity but can support an electrostatic field. In practical applications, dielectrics are used in capacitors, which store electrical energy, and their insulating properties prevent the flow of electrical current while still allowing electric fields to influence charges within the material.

This understanding is critical in electrical engineering and applications where the effective isolation of electrical components is necessary to prevent short circuits or unintended connections. The properties of dielectrics also play a pivotal role in many electrical devices, ensuring that they function safely and effectively.