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The membrane surrounding a living cell consists of an inner and anouter wall that are separated by a small space. Assume that themembrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has amagnitude of 7.50 10^-6 C/m².

a) What is the magnitude of the electric field within the cellmembrane?
b) Find the magnitude of the electric force that would be exertedon a potassium ion (K+; charge = +e) placedinside the membrane.

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