Question

Which one of the following statements is not correct regarding the features of ceramics?
1. Ceramics are hard, strong and dense.
2. Ceramics are stronger in compression than in tension.
3. Ceramics have very poor dielectric properties.
4. Ceramics are weak in impact strength.
5.

Answer 1

Correct Answer - Option 3 : Ceramics have very poor dielectric properties.

Electrical properties of ceramic materials include:

• Very high electrical resistance at a low temperature which results in low conductivity and it, therefore, behaves as an insulator i.e. non-conductor.
• High dielectric constant
• High dielectric strength
• Low dielectric loss

 

Hence, option 3 is correct.