Assertion (A): Ferroelectric materials have spontaneous polarization.Reason (R): Above curie temperature, ∈ = for ferro-electric materials.p> ?->(Show Answer!)

Question Set

1. Assertion (A): Ferroelectric materials have spontaneous polarization.Reason (R): Above curie temperature, ∈ = for ferro-electric materials.

Show Similar Question And Answers

QA->“During my travels throughout the world, I have had the good fortune to come in contact with several saints and maharishis... But I have frankly to admit that I have never come across one who is spiritually greater than Swami Narayana Guru or a person who is at par with him in spiritual attainment.” Who paid tribute in the above words after visiting Sree Narayana Guru?....

QA->‘I have been touring different parts of the world. During these travels, I have had the good fortune to come into contact with several saints and maharshis. But I have frankly to admit that I have never come across one who is spiritually greater than Swami Sree Narayana Guru of Kerala” Whose words are these?....

QA->Ferro magnetism was discovered by?....

QA->The polarization of the electromagnetic wave is in?....

QA->In which type of climate does the temperature never rise above 10°C throughout the year?....

MCQ->Assertion (A): Ferroelectric materials have spontaneous polarization.Reason (R): Above curie temperature, ∈ = for ferro-electric materials.

MCQ->Above ferroelectric curie temperature, spontaneous polarization in ferroelectric materials becomes stronger.....

MCQ->Assertion (A): In a parallel plate capacitor having area of plate 1 m2 and plate separation 1 m, the capacitance C and resistance R are given by C = ∈0∈'r and R = where ω is frequency, ∈r' and ∈r" are real and imaginary parts of dielectric constant.Reason (R): The imaginary part of electric constant is responsible for dielectric losses.

MCQ->Assertion (A): In some materials, ∈r is independent of temperature while in others, ∈r depends on temperature.Reason (R): If permanent dipoles are absent, ∈r varies with temperature.

MCQ->The following properties are associated with ferroelectric materials: Its susceptibility is negative.The susceptibility is expressed as where c is the Curie constant and Tc is the Curie temperature.It has permanent dipoles oriented randomly. Which of the above statements is/are correct?....

Terms And Service:We do not guarantee the accuracy of available data ..We Provide Information On Public Data.. Please consult an expert before using this data for commercial or personal use | Powered By:Omega Web Solutions
© 2002-2017 Omega Education PVT LTD...Privacy | Terms And Conditions Question ANSWER With Solution