The discussion revolves around understanding the electric field generated by two infinite planes, one positively charged and the other negatively charged. Participants are exploring the behavior of electric fields in relation to these planes and questioning the interactions between them.
The discussion is active, with participants providing insights and prompting further exploration of the electric field patterns. There is no explicit consensus, but various interpretations and clarifications are being shared regarding the behavior of the electric fields in different regions.
Participants are considering the effects of the electric fields both inside and outside the region between the two plates, noting that the fields may cancel in some areas while amplifying in others. There is an emphasis on the importance of understanding the direction of the fields in relation to test charges.
Electric field lines originate at positive charges and stop at negative charges. That follows from Gauss's law. You can draw the blue lines if you wish, but you have to be careful. Remember that the electric field points in the direction of the force on a positive test charge. A positive test charge placed between the plates will experience a repulsive force from the positive charges on the left and an attractive force from the negative charges on the right. So if you draw blue lines representing the electric field from the negative charges, they should point left to right, same as the red lines. In that case you might as well draw one set of lines and be done with it.annamal said: