Physics, asked by 17april19881986, 1 year ago

Explain the terms polarisation surface charges and molecular polarisability for a dielectric material.

Answers

Answered by abd123
1
Molecular

polarizability could be explained as following:

All molecules are dipoles, that has dipole momentum. Without electric field

these dipoles

oriented chaotically, so that total dipole momentum (Polarization) is zero.

As we turn on external electric field, the

se tiny dipoles reorient along electric field

, and so, they

more and more sums to total polarization vector. Stronger the electric field, more dipoles orient

along field, that’s why



~



.

When dipoles near the surface reorient,

uncompensated

charge

appear on the surface. On one

side, it’s positive, on the other



negative

Similar questions