Physics 39 Capacitors (31 of 37) Displacement and Polarization

In this video I will calculate the displacement of a capacitor.

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[subhamjha]

You deserve at least a million subscribers.

[asadmamun]

Shouldn’t (E0e0) be removed from Displacement for polarization. But why (Ee0. When we had no dielectric the electric field was E0, not E.

[_smokingaces]

Life saver! You Sir are Outstanding! Thank you a million times for making these videos!

[PTNLemay]

Why does K equal 3 here? Isn't K the constant that equals 1/(4*pi*epsilon_naught)?

[oneinabillion]

Hi sir, isn't E different for both cases? Why were u able to factor it out in the calculation of polarisation?

[deniz-gunay]

While calculating the polarization, actually what we have done is E.£.K - E.£.1
So we are trying find the difference of surface charge density when there is a diaelectric and when there is not a diaelectric.
But at the situation when there is no diaelectric, electrical field should be bigger than 10^6
However the formula we have applied here is E.£.K - E.£.1 = E.£.(K-1)
We are using the same E(electric field) in this formula.
Isn't that wrong?

EDIT: Probably the polarization is not the difference of surface charge density when there is a diaelectric and when there is not a diaelectric. So I'm wrong here.

[shb]

Wow... the unit of displacement field is C/M^2Why I have not known that? Thanks your explanation!

[JuampaXXI]

You are the only person whom i've understood the explanation of the displacement, grateful that my mother sent me to an english institute when i was young since i'm from Argentina, not an english-speaking country. Thank you for your help!!.

[derek]

Excellent, you explain everything smoothly. Thank you very much :)