Electric Current and Electrical Energy Chapter 14, Section 2 http://news-poland.com/result/news/id/1626
Electric current is the rate at which charges pass a given point. I’m “charging“ toward the finish line ! http://footage.shutterstock.com/clip-885589-stock-footage-man-running-d-render-with-alpha-channel.html http://www.prlog.org/11759967-trilateral-closes-fund-1-and-prepares-fund-2.html
An electric current can be made when there is a potential difference between two points.
As voltage, or potential difference increases, current increases. http://www.timmestein.nl/index.php?page=Tube-amplifier
An object’s resistance varies depending on the objects: material length thickness temperature As resistance increases, current decreases.
Cells and batteries convert chemical energy or radiant energy into electrical energy. http://www.milehighautomation.com/home-automation-blog/hai/battery/
Example: This cell uses the juice of [an orange] as an electrolyte and uses strips of zinc and copper as electrodes. (page 429) http://www.newlaunches.com/archives/fruit_powered_digital_clock.php
Thermocouples and photocells are devices used to generate electrical energy from heat and light.