Question

Water has a greater dielectric constant than mica. Why?

Answer 1

i think because water is a polar molecule whereas mica is not

Answer 2

Yup it does..here's a table

Answer 3

http://hyperphysics.phy-astr.gsu.edu/Hbase/tables/diel.html

Answer 4

oh thanks

Answer 5

Water, due to its polar nature, has a large dielectric constant. Therefore, water molecule has a very large electric dipole moment and is forced to rotate to respond to an alternate external electric field. Hence water as a liquid has a very large dielectric constant i.e. 80.
Mica on the other hand is less polar as water and hence has low dielectric constant.

Answer 6

thanks , can you explain me what is alternate external field