5H10.20 Oersted's Effect #1

Explore the field around a long wire with a compass needle. 

Image

 

Picture: Need New Photo

 

Setup Requirements: Assembled as needed. May vary from photograph.

 

Equations: None

 

Safety Issues: Heavy current . Can cause insulation to smoke and  wires to overheat and break. Do no leave switch closed more than a few seconds if using car battery without dropping resistor.