[Q]Is field made by Polarization different from external field?

[good_phy]

Hi.

It is supposed that External field imposes to dielectric matter and Polarization occurs.

Thus, Bounded volumb and surface charge are made.

My question is, is field induced by Bounded charge in addition to original(external) field

different from original field existing alone(Situation in which There is no matter causing

Polarization)?

I think and Textbook said it is different. But Someone said Just magnitude of field changes

without direction.


I'd like to make it sure.

 

[jrlaguna]

Both the magnitude and the direction of the field can change in a polarized material. Check Feynman's lectures, vol II, chaps 10 for the first and 30 for the second.