Bissoy.com
Doctors Medicines MCQs Q&A

A dielectric is always an insulator. But an insulator is not necessarily a dielectric. State True/False.

A dielectric is always an insulator. But an insulator is not necessarily a dielectric. State True/False. Correct Answer True

For a material to be dielectric, its permittivity should be very high. This is seen in insulators. For a material to be insulator, the condition is to have large band gap energy. However, this is not necessary for a dielectric.

Related Questions

Five containers of different shapes sphere, cube, prism, cuboid and cylinder have different patterns plain, checkered, floral, polka dots and stripes but not necessarily in the same order. Also each has a different colour blue, green, pink, black and yellow but not necessarily in the same order. The cube and cylinder don't have floral design. Sphere is pink in colour. Prism has checkered design but is not yellow or black in colour. Cuboid is green in colour but doesn't have polka dots or stripes pattern. The plain container is pink in colour. Cube has polka dots and neither blue nor black in colour. Cylinder is not blue in colour. Which container has floral pattern?
A, B, C, D, E and F are six girls who use 6 different face wash – Pond’s, Lakme, Lotus, Garnier, Himalaya and Kaya (but not necessarily in the same order). They also like six different colours – Red, Blue, Brown, Peach, Black and White (also not necessarily in the same order. A and C do not like a Red colour. The girl who uses Lakme face wash likes Peach colour. The girl who likes White colour does not use Kaya nor Lotus face wash. B neither likes Peach nor Red colour. D does not like a Blue colour but uses a Lotus face wash. The girl who uses Pond’s face wash likes Red colour. C does not use Lakme face wash nor likes white colour. F neither uses Himalaya nor Kaya face wash but likes Brown colour. Who does use Himalaya’s face wash?
Read the information carefully and answer the question based on it. The seven lecturers  P, Q, R, S, T, U and V, teach seven subjects viz. Physics, Chemistry, Biology, English, Mathematics, Economics and Geography. These seven lecturers teach different subjects but not necessarily in the same order. Every teacher teaches only one day from Monday to Sunday but not necessarily in the same order. R teaches Biology on Friday. One who teaches Physics immediate on previous day of which, Q teaches Mathematics. V teaches on Sunday but not Chemistry or English. U teaches on which day, immediate on previous day of which S teaches Economics, P teaches Geography on Tuesday. T does not teach English. Which subject does 'T’ teach ? 
Six persons - Seema, Vaibhav, Ajay, Manisha, Tulika and Ananya - were born in six different states, namely Assam, Gujarat, Madhya Pradesh, Punjab, Bihar and Rajasthan, but not necessarily in the same order. They all play six different games, namely Chess, Football, Hockey, Ludo, Badminton and Cricket, but not necessarily in the same order. Ananya was born in Gujarat and she plays Cricket. Ajay does not play Chess or Ludo. The person who was born in Bihar plays Football. Seema plays Hockey and she was not born in Assam or Madhya Pradesh. Manisha was born in Rajasthan and she plays badminton. Identify the state in which Ajay was born?
Two dielectric materials A and B exhibit both ionic and orientational polarizabilities. The variation of their susceptibilities $$\chi \left( { = {\varepsilon _r} - 1} \right)$$   with temperature T is shown in the figure, where $${\varepsilon _r}$$ is the relative dielectric constant. It can be inferred from the figure that
Solid State Physics mcq question image
In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.
But what does this enthusiasm for voting actually _____________? One popular theory ____________ that poor people __________ because they are intimidated into doing so. Intimidation occurs for sure but why then, voters in places where there is no intimidation do so? Another theory is that people vote in return for _____________. But recent research across India _________ that those who spend the most do not always win elections and voters do not feel any obligation to vote for those handing out freebies. In fact, they often accept the goodies from allparties but vote for only one.
But recent research across India _________ that those who spend the most do not always win elections
Six boys A, B, C, D, E, and F have one different bag namely B1, B2, B3, B4, B5, and B6 (not necessarily in the same order). Each also like a different phone namely P1, P2, P3, P4, P5, and P6 (not necessarily in the same order). A has one bag among B2 and B5, but he does not like P3 or P6. E has one bag among B1 and B4. C and D do not like odd numbered phone. B likes P2. C has B6. The one who has B2, likes P6. The one who has B3, likes P1. B does not have odd numbered bag. Which of the following combination of boy - bag - phone is not correct?
Necessary condition for obtaining an interference pattern when light waves (of same frequency) from two points S1 and S2 superpose is:   Intensity of two waves Phase difference between the two waves at S1 and S2 must be 1) Must be equal Zero 2) Must be equal π  3) Must be equal Constant with time but not necessarily zero 4) Need not be equal Constant with time but not necessarily zero
Consider the following statements : I. Every equilateral triangle is necessarily an isosceles triangle. II. Every right-angled triangle is necessarily an isosceles triangle. III. A triangle in which one of the median is perpendicular to the side it meets, is necessarily an isosceles triangle. The correct statements are:
Consider the following statements :I. Every equilateral triangle is necessarily an isosceles triangle.II. Every right-angled triangle is necessarily an isosceles triangle.III. A triangle in which one of the median is perpendicular to the side it meets, is necessarily an isosceles triangle.The correct statements are: