00:01
So, here in this question we are considering about the insulator which contains number of molecules is given that is equals to 2 multiplied by the 10 raised to the power 9 polar molecules per cubic centimeter and each molecule have a dipole moment which is represented by p that is equals to 1 .8 multiplied by the 10 raised to the power minus 27 c meter.
00:27
We are assuming that all the dipoles are perfectly aligned in the x cap direction and the resulting in the force electric force that is equals to e which is equals to 10 raised to the power 5 volt per meter x cap.
00:41
So, in the first part we have to find out the polarization of the insulator.
00:45
So, polarization is given as p that is equals to the summation that is from i minus 1 to n of qi which is multiplied by di which is divided by v.
00:58
So, which from here is equals to a summation i is from 1 to n of p of i which is divided by v.
01:05
So, the value of p mod from here is equals to p mod which is from v to n that from here is equals to 2 which is multiplied by 10 raised to the power 19 which is further multiplied by the 1 .8 that is multiplied by the 10 raised to the power minus 27.
01:19
So solving the term from here we get the value of p mod that become equals to 3 .6 which is multiplied by the 10 raised to the power minus 8.
01:28
So this is the value of the p mod and the value of p from here is equals to p mod which is multiplied by the ax...