4. The electric field is created by three conducting infinite parallel plates. The outermost plates carry a charge uniformly distributed over the area with surface densities of -2 nCL/m and +5 nCL/m. The middle plate is uncharged. The distance between neighboring plates is the same and equals d = 0.8 cm. Determine the electric field strength E outside and between the plates, as well as the potential difference between the plates. How will the result change if one side of the middle plate is grounded?

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4. The electric field is created by three conducting infinite parallel plates. The outermost plates carry a charge uniformly distributed over the area with surface densities of -2 nCL/m and +5 nCL/m. The middle plate is uncharged. The distance between neighboring plates is the same and equals d = 0.8 cm. Determine the electric field strength E outside and between the plates, as well as the potential difference between the plates. How will the result change if one side of the middle plate is grounded?

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