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Large electric fields in cell membranes cause ions to move through the cell wall. The field strength in a typical membrane is 1.0 x 10 7 N/C. What is the magnitude of the force on a calcium ion with charge +e? What is its acceleration? Is it possible for a particle with the same charge as calcium to have a different acceleration if placed at this location? What would change the acceleration?

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Amal Jeeva
Amal JeevaLv10
5 Oct 2020

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

 

Large electric fields in cell membranes cause ions to move through the cell wall. The field strength in a typical membrane is 1.0 x 10 7 N/C. What is the magnitude of the force on a calcium ion with charge +e? What is its acceleration?

Is it possible for a particle with the same charge as calcium to have a different acceleration if placed at this location?

 

The membrane surrounding a living cell consists of an inner and anouter wall that are separated by a small space. Assume that themembrane acts like a parallel plate capacitor in which theeffective charge density on the inner and outer walls has amagnitude of 5.54 x 10-6 C/m2. (a) What is the magnitude of theelectric field within the cell membrane? (b) Find the magnitude ofthe electric force that would be exerted on a potassium ion (K+;charge = +e) placed inside the membrane.

Hint:For part (b), recall the electric force is equal to theelectric field multiplied by the charge.

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. Assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 5.57 x 10-6 C/m2. (a) What is the magnitude of the electric field within the cell membrane? (b) Find the magnitude of the electric force that would be exerted on a potassium ion (K+; charge = +e) placed inside the membrane.

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