What is a typical electrical property of ceramic materials?

What is a typical electrical property of ceramic materials?

• A. They conduct electricity well
• B. They are magnetic
• C. They are poor conductors of electricity
• D. They are ductile

Answer: (C)

Most ceramics are electrical insulators. This is because their atoms form strong ionic or covalent bonds in a rigid crystal lattice and there are very few free charge carriers to move when a voltage is applied. The result is a high resistivity, so ceramics behave as poor conductors of electricity at room temperature. This insulating nature is what makes ceramic materials common as electrical insulators and dielectrics in electronics and power systems. Ductility is a mechanical property describing how a material deforms under stress, which is not related to how it conducts electricity. Some ceramics can be magnetic, but magnetism is not the typical electrical property being described here.

Most ceramics are electrical insulators. This is because their atoms form strong ionic or covalent bonds in a rigid crystal lattice and there are very few free charge carriers to move when a voltage is applied. The result is a high resistivity, so ceramics behave as poor conductors of electricity at room temperature. This insulating nature is what makes ceramic materials common as electrical insulators and dielectrics in electronics and power systems.

Ductility is a mechanical property describing how a material deforms under stress, which is not related to how it conducts electricity. Some ceramics can be magnetic, but magnetism is not the typical electrical property being described here.