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The membrane surrounding a living cell consists of an inner and an outer wall that are...

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. Assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.1 10-6 C/m2. (a) What is the magnitude of the electric field within the cell membrane? N/C (b) Find the magnitude of the electric force that would be exerted on a potassium ion (K+; charge = +e) placed inside the membrane. N

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or Pa rallel Hat Plates eleot ric Pield ON eo 7.1 X16 s 9.02 XIoS N 3-85 X1o2 (B ) 8.02 χ , os x1.6 x10-1: 1.28x10-13N force

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