The discussion revolves around the electric field generated by two large, parallel metal plates with opposite surface charge densities. The original poster seeks clarification on the orientation and implications of the electric field in various regions: to the left, to the right, and between the plates.
Participants are actively engaging with the concepts, raising questions about the nature of electric fields, the effects of distance, and the distribution of charge on the plates. Some guidance has been offered regarding the superposition principle and the behavior of electric fields from infinite planes, but no consensus has been reached.
There are ongoing discussions about the assumptions of infinite plate size and the implications for electric field behavior, as well as the distribution of charge on metal plates. Participants express confusion about how these factors influence the electric field in various regions.
?gracy said:
And applying Gauss' Law.gracy said:
If a uniformly charged sheet is infinite then, by symmetry, the component of the electric field parallel to the plate is zero everywhere. It does not matter whether the plate is conductive or not -- uniformly distributed charge will not flow to become non-uniform.gracy said:
So I can use the formula E=σ/(2ε0) in conducting as well as non conducting sheet,right?jbriggs444 said:
please say "yes"gracy said:
The why when dielectric is placed between the plates of capacitor there is decrease in electric field between the plates?ehild said:
Decrease with respect to what?gracy said:
I meant electric field between the plates is less when dielectric is placed between them than when it is not.ehild said:
Supposing the capacitor is connected to a battery. You insert dielectric between the plates.What happens to the electric field?gracy said:
It happens because of the dielectric polarization. If instead of a dielectric, there were a conducting material, all the field would vanish.gracy said: