A material through which current does not easily flow is called a

A material through which current does not easily flow is called a

• A. Insulator
• B. Conductor
• C. Resistor
• D. Magnet

Answer: (A)

When electricity moves easily through a material, it behaves as a conductor; when it does not, the material resists the flow of current. A material through which current does not easily flow has high resistance because its electrons aren’t free to move, so it blocks or greatly slows the passage of electric charges. This type of material is called an insulator. Rubber, plastic, and glass are common examples. A resistor is a device designed to limit current, not a description of a material’s property. A magnet relates to magnetic effects, not how well a material conducts electricity.

When electricity moves easily through a material, it behaves as a conductor; when it does not, the material resists the flow of current. A material through which current does not easily flow has high resistance because its electrons aren’t free to move, so it blocks or greatly slows the passage of electric charges. This type of material is called an insulator. Rubber, plastic, and glass are common examples. A resistor is a device designed to limit current, not a description of a material’s property. A magnet relates to magnetic effects, not how well a material conducts electricity.