The figure below shows two parallel plates. Assume they are infinite in area (th

Question

The figure below shows two parallel plates. Assume they are infinite in area (this way we can neglect edge effects). The plate on the left is at a potential of +12V and the plate on the right is at a potential of 0V. The plates are a distance 8cm apart and the dashed lines are spaced equally 2cm apart. What is the magnitude of the electric field at point B? http://capa10.phy.ohiou.edu/res/ohiou/OUp200lib/sfChpt16/fig/parallel_plates.gif If you cant see the image point B is in the middle top A B C D E F

Explanation / Answer

given the the left plate is at +12V and right one at 0V since the plates are considered infinite so the electric field between the plates will be uniform and so we can write E = V/d for each point between plates so electric field magnitude at B = 12/8 =1.5V/cm or 0.015 V/m

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