The interior of a cell is measured to be 70mV below its surroundings. This is due to a layer of positive charge on the membrane's outer surface, and a layer of negative charge on the inner surface. The size of the separated charge is Q=1.2 x 10-13 C. What is the cell membrane's capacitance? a. 2.9x10^-3 F b. 1.7x10^-12 F c. 8.4x10^-15 F d. 5.8x10^11 F

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter27: Capacitors And Batteries
Section: Chapter Questions
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The interior of a cell is measured to be 70mV below its surroundings. This is due to a layer of positive charge on the membrane's outer surface, and a layer of negative charge on the inner surface. The size of the separated charge is Q=1.2 x 10-13 C. What is the cell membrane's capacitance?

a. 2.9x10^-3 F

b. 1.7x10^-12 F

c. 8.4x10^-15 F

d. 5.8x10^11 F

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