A typicalcell membrane is 8.0 nm thick and has an electrical resistivity of1.3 * 107 Ω # m. (a) If the potential difference between the innerand outer surfaces of a cell membrane is 75 mV, how much current flows through a square area of membrane 1.0 mm on a side?(b) Suppose the thickness of the membrane is doubled, but theresistivity and potential difference remain the same. Does the current increase or decrease? By what factor?
A typicalcell membrane is 8.0 nm thick and has an electrical resistivity of1.3 * 107 Ω # m. (a) If the potential difference between the innerand outer surfaces of a cell membrane is 75 mV, how much current flows through a square area of membrane 1.0 mm on a side?(b) Suppose the thickness of the membrane is doubled, but theresistivity and potential difference remain the same. Does the current increase or decrease? By what factor?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter21: Current And Direct Current Circuits
Section: Chapter Questions
Problem 5OQ: A potential difference of 1.00 V is maintained across a 10.0- resistor for a period of 20.0 s. What...
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A typical
cell membrane is 8.0 nm thick and has an electrical resistivity of
1.3 * 107 Ω # m. (a) If the potential difference between the inner
and outer surfaces of a cell membrane is 75 mV, how much current flows through a square area of membrane 1.0 mm on a side?
(b) Suppose the thickness of the membrane is doubled, but the
resistivity and potential difference remain the same. Does the current increase or decrease? By what factor?
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