Item 13Cell Membranes and Dielectrics Many cells in the body have a cellmembrane whose inner and outer surfaces carry opposite charges, just likethe plates of a parallel-plate capacitor. Suppose a typical cell membrane hasa thickness of 8.5x109 m, and its inner and outer surfaces carry chargedensities of -6.4×10-4 C/m² and +6.4×10-4 C/m², respectively. Inaddition, assume that the material in the cell membrane has a dielectricconstant of 5.4.Part AFind the direction of the electric field within the cell membrane.into the cellO out of the cellSubmitPart BE =Find the magnitude of the electric field within the cell membrane.Express your answer using two significant figures.—| ΑΣΦSubmitPart CRequest Answer|AV| =SubmitRequest AnswerCalculate the potential difference between the inner and outer walls of the membrane.Express your answer using two significant figures.17 ΑΣΦ# ?Request AnswerN/C?mV ▼Part DIndicate which wall of the membrane has the higher potential.inner wallouter wallSubmitRequest Answer

Answered: Image /qna-images/answer/47189794-1903-44f4-95cb-33d08d0e44b6.jpg

Item 13 Cell Membranes and Dielectrics Many cells in the body have a cell membrane whose inner and outer surfaces carry opposite charges, just like the plates of a parallel-plate capacitor. Suppose a typical cell membrane has a thickness of 8.5x109 m, and its inner and outer surfaces carry charge densities of -6.4x10-4 C/m² and +6.4x10-4 C/m², respectively. In addition, assume that the material in the cell membrane has a dielectric constant of 5.4. ▼ Part A Find the direction of the electric field within the cell membrane. O into the cell O out of the cell Submit Request Answer Part B Find the magnitude of the electric field within the cell membrane. Express your answer using two significant figures. 197| ΑΣΦ h → C E= Submit Part C |AV|= Request Answer Submit Calculate the potential difference between the inner and outer walls of the membrane. Express your answer using two significant figures. —| ΑΣΦ h ? Request Answer N/C ? mV

Item 13 Cell Membranes and Dielectrics Many cells in the body have a cell membrane whose inner and outer surfaces carry opposite charges, just like the plates of a parallel-plate capacitor. Suppose a typical cell membrane has a thickness of 8.5x109 m, and its inner and outer surfaces carry charge densities of -6.4x10-4 C/m² and +6.4x10-4 C/m², respectively. In addition, assume that the material in the cell membrane has a dielectric constant of 5.4. ▼ Part A Find the direction of the electric field within the cell membrane. O into the cell O out of the cell Submit Request Answer Part B Find the magnitude of the electric field within the cell membrane. Express your answer using two significant figures. 197| ΑΣΦ h → C E= Submit Part C |AV|= Request Answer Submit Calculate the potential difference between the inner and outer walls of the membrane. Express your answer using two significant figures. —| ΑΣΦ h ? Request Answer N/C ? mV

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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Water constitutes about 70% of earth. Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.

Question

Item 13
Cell Membranes and Dielectrics Many cells in the body have a cell
membrane whose inner and outer surfaces carry opposite charges, just like
the plates of a parallel-plate capacitor. Suppose a typical cell membrane has
a thickness of 8.5x109 m, and its inner and outer surfaces carry charge
densities of -6.4×10-4 C/m² and +6.4×10-4 C/m², respectively. In
addition, assume that the material in the cell membrane has a dielectric
constant of 5.4.
Part A
Find the direction of the electric field within the cell membrane.
into the cell
O out of the cell
Submit
Part B
E =
Find the magnitude of the electric field within the cell membrane.
Express your answer using two significant figures.
—| ΑΣΦ
Submit
Part C
Request Answer
|AV| =
Submit
Request Answer
Calculate the potential difference between the inner and outer walls of the membrane.
Express your answer using two significant figures.
17 ΑΣΦ
# ?
Request Answer
N/C
?
mV

▼
Part D
Indicate which wall of the membrane has the higher potential.
inner wall
outer wall
Submit
Request Answer

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