permaneceerc
2021-04-22
Answered

Nerve cells are long, thin cylinders along which electric disturbances (nerve impulses) travel. The cell membrane if a typical nerve cell consists of an inner and outer wall separated by a distance of $0.10\mu m$ . The electric field within the cell membrane is $7.0\cdot {10}^{5}$ N/C. Approximating the cell membrane as a parallel plate capacitor, determine the magnitude of the charge density on the inner and outer cell walls.

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aprovard

Answered 2021-04-24
Author has **94** answers

The cell membrane is approximated as parallel plate capacitorthen the charge density is

$\sigma ={\u03f5}_{o}E$ ( E isindependent of distance )

$=(8.825\cdot {10}^{-12})\cdot (7\cdot {10}^{5})$

$=6.1775\cdot {10}^{-6}\frac{C}{{m}^{2}}$

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