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Electronics and Communication Engineering - Materials and Components - Discussion

Discussion Forum : Materials and Components - Section 1 (Q.No. 33)
Materials and Components
33.

Assertion (A): Ferroelectric materials have spontaneous polarization.

Reason (R): Above curie temperature, ∈ = for ferro-electric materials.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true
Answer: Option
Explanation:

Both A and R are correct. Spontaneous polarization vanishes above ferroelectric curie temperature.

Discussion:
2 comments Page 1 of 1.
Troy said:   6 years ago
Thanks @Kumar.
Rohit kumar said:   7 years ago
Spontaneous Polarization: A material is said to be spontaneously polarized when electric field E is zero but polarization P is not zero. This phenomenon is called spontaneous (by its own) polarization.
(1)
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