http://www.ck12.org Chapter 17. Circuits
FIGURE 17.5
Conventional current flow: A positive flow of current through a light bulb.FIGURE 17.6
The red wire is connected to the positive
terminal of the battery.Water pipes may initially be full or empty of water. If the pipes are full, then the pressure is conveyed very quickly
and water at any point within a pipe flows. If the pipes are empty, then there will be a noticeable time delay before
the water can move from the tank through the pipes to its destination. Think of a long garden hose. On the other