Physics 37.1 Gauss's Law Understood (2 of 29) What is Electric Flux?

In this video I will explain the electric flux with 4 different scenarios where strong E field large area, strong E field small area, weak E field large area, and weak E field small area.

Next video in this series can be seen at:

[danfow]

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[LanoMusambazi-srmx]

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[akshaynandal]

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[colorx]

Great video! I just wanted to ask, our textbook stated that Electric flux is independent of the size and shape of the surface. However, the formula for Electric flux is = Efield • Area. This would then mean that Eflux must depend on the length of the surface which would then contradict the statement earlier. Can you please clarify this? Thank you very much.

[LanoMusambazi-srmx]

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[yungifez]

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Thank you Michael

[PM-yzfx]

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[samiraakif]

great explanation using and solving problems. Because now it is absolutely clear that electric flux depending on two quantities as well as angle too. Thank you very much

[maggie]

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[DENNISKIPKOECH-kj]

what happens when area is near to zero

[CE]

I'm sharing the same comment that I shared in the last video.

There are a lot of great things about this video. It is very neat and organized and explained step-by-step. However, the units of electric flux are C, not N*m^2/C. You need to use the electric flux density vector D (units: C/m^2), not the electric field intensity vector E (units: N/C = V/m). PHI = D*A*cos(theta). The electric flux density D is proportional to the electric field intensity E. D = eps*E. C/m^2 = F/m*V/m. This is important especially when discussing Gauss' Law, because Gauss' law states that the total electric flux that is cutting through a closed Gaussian surface is equal to the total charge enclosed in that Gaussian surface. The units of electric charge and electric flux are the same; i.e. Coulombs.

[footballanalyst]

Nice explanation, Please define Surface vector ?