Physics electrostatics question

[priyanshm]

i just can't seem to figure out what is the effect of temprature on dielectric constant of a medium. since, K=ε/ε0, therefore according to me there is no effect of temperature as temperature is not in the formula. Please help.

 

[tiny-tim]

welcome to pf!

hi priyanshm! welcome to pf!

from the cambridge university site http://www.doitpoms.ac.uk/tlplib/dielectrics/temperature.php …

For materials that possesses permanent dipoles, there is a significant variation of the dielectric constant with temperature.
This is due to the effect of heat on orientational polarisation.

follow the link for details, including moving diagrams and mini-quiz

(nb, "doitpoms" stands for "Dissemination of IT for the Promotion of Materials Science"! )