A typical cell membrane is 8.0 nm thick and has an electrical resistivity of 1.3 x 10^7 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 micrometers on a side? Express your answer using two significant figures (B) Suppose the thickness of the membrane is doubled, but the resistivity and potential difference remain the same. Does the current increase?

A typical cell membrane is 8.0 nm thick and has an electrical resistivity of 1.3 x 10^7 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 micrometers on a side? Express your answer using two significant figures (B) Suppose the thickness of the membrane is doubled, but the resistivity and potential difference remain the same. Does the current increase?

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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