Electrostatic Field Lines and a Faraday Cage

Buy Add to Lightbox Download
The electrostatic field lines around a point charge and a cylinder.   The electric fields are shown by placing the two charged objects in a pan filled with cooking oil and pepper flakes.  The pepper flakes align in the electric field and allow visualization of the field.  In this image the left point is charged to -30,000 volts while the right ring has a potential of + 30,000 volts.  This image is part of a series showing different charging conditions.  Of special importance is the lack of fields showing inside the cylinder.  This is the classic case of no electrical fields inside an electrical conductor.  In this image the cylinder acts as a Faraday cage and shields the enclosed area from any external electrical fields..
The electrostatic field lines around a point charge and a cylinder. The electric fields are shown by placing the two charged objects in a pan filled with cooking oil and pepper flakes. The pepper flakes align in the electric field and allow visualization of the field. In this image the left point is charged to -30,000 volts while the right ring has a potential of + 30,000 volts. This image is part of a series showing different charging conditions. Of special importance is the lack of...
more »

Filename: K11-efield012.JPG
Copyright