In this activity a solar cell is illuminated with light from a 12 V bulb. The distance from the bulb to the cell is increased...

Classroom Activity 14-16

Drawing on the previous sections, we have seen that it's possible to develop an energy description of electric circuits at a...

Teaching Guidance 14-16

The power in the heating by radiation pathway is measured in watts. That's simple and is often called the radiant power. More...

Physics Narrative 14-16