The voltage across a membrane forming a cell wall is 57.0mV and the membrane is 8.00 nm thick.• What is the electric field strength? (The value issurprisingly large, but correct. Membranes arediscussed in Capacitors and Dielectrics and NerveConduction-Electrodiograms.) You may assume auniform electric field.Provide the solution:106 V/m

Applied voltage (V) = 57 mV = 57*10-3 V Thickness (d) = 8 nm = 8*10-9 m

Answered: The voltage across a membrane forming a…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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GENERAL PHYSICS 2 Activity #4: CAPACITANCE Two capacitors with 2.0F and 3.0F capacitance, respectively, are connected in parallel and subjected to a total potential difference of 100 volts. Find the (a) total capacitance, (b) charge stored in each capacitor, and (c) potential difference across each capacitor. Sketch the capacitors.
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Membrane walls of living cells have surprisingly large electric fields across them due to separation of ions. (Membranes are discussed in some detail in Nerve Conduction-Electrocardiograms.) What is the voltage (in mV) across a 7.95 nm thick membrane if the electric field strength across it is 5.60 MV/m? You may assume a uniform electric field. mV
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You charge a 2.00-μF capacitor to 40.0 V. 1)How much additional energy must you add to charge it to 110 V? (Express your answer to three significant figures.)
The thickness of the cell membrane is 5 nm, the potential inside the cell is - 65 mV, the potential outside the cell is +10 mV. The electric field strength in the membrane is (kV/m) (give the modulus of magnitude)
Consider the circuit shown in the figure below, where C₁ = 8.00 μF, C₂ = 6.00 μF, and AV = 22.0 V. Capacitor C₁ is first charged by closing switch S₁. Switch S₁ is then opened, and the charged capacitor is connected to the uncharged capacitor by closing S₂. •{I} (a) Calculate the initial charge (in µC) acquired by C₁. (Round your answer to at least one decimal place.) μC AV (b) Calculate the final charge (in μC) on each capacitor. (Round your answers to at least the nearest integer.) Q₁ = με μC 2₂ = (c) What If? After a very long time, switch S₁ is also closed. By what amount does the charge on the second capacitor change after S₁ has been closed for a very long time? (Give your answer in μC.) μC
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