Large electric fields in cell membranes cause ions to move...

Name: Problem 46, Chapter 20: College Physics: A Strategic Approach
Uploaded: 2020-12-02T04:30:31-08:00
Duration: 2 min 9 s
Channel: Khoobchandra Agrawal
Description: Large electric fields in cell membranes cause ions to move through the cell wall, as we will explore in Chapter 23 . The field strength in a typical membrane is 1.0 ×10^7 N / C. What is the magnitude of the force on a calcium ion with charge +e ?

Large electric fields in cell membranes cause ions to move through the cell wall, as we will explore in Chapter $23 .$ The field strength in a typical membrane is $1.0 \times 10^{7} \mathrm{N} / \mathrm{C}$. What is the magnitude of the force on a calcium ion with charge $+e ?$

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Key Concepts

Electric Field

An electric field is a vector field that represents the force per unit charge at any given point in space, measured in newtons per coulomb (N/C). It characterizes how the presence of other charges produces a force on any test charge placed within that field, and is central to understanding interactions in electromagnetic systems.

Force on Charged Particle

The force experienced by a charged particle in an electric field is given by the equation F = qE, where F is the force, q is the electric charge of the particle, and E is the electric field strength. This concept is fundamental in electromagnetism, as it explains how electric fields influence the motion of charges.

Elementary Charge

The elementary charge, denoted as e, is the basic unit of electric charge quantifying the charge of a single proton (or the magnitude of charge of an electron). It has a value of approximately 1.602 × 10^-19 coulombs and is a key constant in calculations involving charged particles in physics.

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