Chapter 23
Gauss's Law
![Electric Flux](https://cloudfront.jove.com/files/media/science-education/science-education-thumbs/13714.jpg)
The concept of flux describes how much of something goes through a given area. More formally, it is the dot product of a vector field within an area.…
![Calculation of Electric Flux](https://cloudfront.jove.com/files/media/science-education/science-education-thumbs/13715.jpg)
Consider the electric field of an oppositely charged, parallel-plate system and an imaginary box between those plates. Let the bottom face of the box…
![Gauss's Law: Problem-Solving](https://cloudfront.jove.com/files/media/science-education/science-education-thumbs/13717.jpg)
Gauss's law helps determine electric fields even though the law is not directly about electric fields but electric flux. In situations with…
![Gauss's Law: Spherical Symmetry](https://cloudfront.jove.com/files/media/science-education/science-education-thumbs/13718.jpg)
A charge distribution has spherical symmetry if the density of charge depends only on the distance from a point in space and not on the direction. In…
![Gauss's Law: Planar Symmetry](https://cloudfront.jove.com/files/media/science-education/science-education-thumbs/13720.jpg)
A planar symmetry of charge density is obtained when charges are uniformly spread over a large flat surface. In planar symmetry, all points in a…
![Electric Field Inside a Conductor](https://cloudfront.jove.com/files/media/science-education/science-education-thumbs/13721.jpg)
When a conductor is placed in an external electric field, the free charges in the conductor redistribute and very quickly reach electrostatic…
![Electric Field at the Surface of a Conductor](https://cloudfront.jove.com/files/media/science-education/science-education-thumbs/13723.jpg)
Consider a conductor in electrostatic equilibrium. The net electric field inside a conductor vanishes, and extra charges on the conductor reside on…
![Electric Field of a Non Uniformly Charged Sphere](https://cloudfront.jove.com/files/media/science-education/science-education-thumbs/14177.jpg)
Gauss's law states that the electric flux through any closed surface equals the net charge enclosed within the surface. This law is beneficial…
![External Excitation of Neurons Using Electric and Magnetic Fields in One- and Two-dimensional Cultures](https://cloudfront.jove.com/files/thumbs/54357_t.png)
A neuron will fire an action potential when its membrane potential exceeds a certain threshold. In typical activity of the brain, this occurs as a…
![A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires](https://cloudfront.jove.com/files/thumbs/53623_t.png)
Stretchable electronics are identified as a key technology for electronic applications in the next generation. One of the challenges in fabrication…