Two very large metal parallel plates are 20.0 cmapart and carry equal, but oppos

Question

Two very large metal parallel plates are 20.0 cmapart and carry equal, but opposite, surface charge densities. (Figure 1) shows a graph of the potential, relative to the negative plate, as a function of x. For this case, x is the distance from the inner surface of the negative plate, measured perpendicular to the plates, and points from the negative plate toward the positive plate.

Part A

Find the electric field between the plates.

Express your answer in volts per meter to two significant figures.

Explanation / Answer

formula for electric field between plates

E = dV/ dx

= 5 V/20* 10^-2 m

= 25 V/m

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