Materials
- Laser pointer, any kind (red lasers work best because of its larger wavelength)
- Thin copper filament/strand. Many wires are made with copper strands. Cut a piece of a cable that you don’t mind discarding. Remove the rubber and separate the intertwined pieces of copper. Get a single strand, depending on your laser pointer 3 inches will suffice.
- Electrical tape
- Paper, notebook or whiteboard to write the observations
Description
For many years, there were different theories, and physicists designed many experiments to test the different hypotheses. Follow in their footsteps to answer these questions yourself!
Creators
Developed by American Physical Society