Which term describes a material that does not easily allow the movement of electrons through it?

Which term describes a material that does not easily allow the movement of electrons through it?

• A. Piezoelectric effect
• B. Insulator
• C. Semiconductor
• D. Superconductor

Answer: (B)

Think about how easily electrons can move through a material. A material that does not allow electrons to move easily has high resistance and is called an insulator. In insulators, electrons are tightly bound to atoms, so current flows very little under normal conditions. That’s why substances like rubber, plastic, and glass are used to insulate wires. Metals, on the other hand, have loosely bound electrons that move freely, making them good conductors. Semiconductors have conductivity between insulators and conductors and can be adjusted with conditions like temperature or impurities. Superconductors carry current with almost no resistance, but only at very low temperatures. So, the term for a material that doesn’t easily allow electron movement is insulator.

Think about how easily electrons can move through a material. A material that does not allow electrons to move easily has high resistance and is called an insulator. In insulators, electrons are tightly bound to atoms, so current flows very little under normal conditions. That’s why substances like rubber, plastic, and glass are used to insulate wires. Metals, on the other hand, have loosely bound electrons that move freely, making them good conductors. Semiconductors have conductivity between insulators and conductors and can be adjusted with conditions like temperature or impurities. Superconductors carry current with almost no resistance, but only at very low temperatures. So, the term for a material that doesn’t easily allow electron movement is insulator.