Round your final answers to two significant figures We can model some of the ele

Question

Round your final answers to two significant figures We can model some of the electrical properties of an unmyelinated axon as an electrical cable covered with defective insulation so that current leaks out of the axon to the surrounding fluid. We assume the axon consists of a cylindrical membrane filled with conducting fluid. A current of ions can travel along the axon in this fluid and can also leak out through the membrane. The inner radius of the cylinder is4.2 m; the membrane thickness is 8.5 nm. Round your answer to two significant figures. Part 1 out of 3 (a) If the resistivity of the axon fluid is 1.5 ·m, calculate the resistance of a 1.0 cm length of axon to current flow along its length. next

Explanation / Answer

Here ,

ri = 4.2 um

t = 8.5 nm

a) for the resitance of the axon

R = p * L/area

R = 1.5 * 0.01/(pi * ((4.2 *10^-6 + 8.5 *10^-9)^2 - (4.2 *10^-6)^2))

R = 6.68 *10^10 Ohm

the resitance of the axon is 6.68 *10^4 MOhm

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