Useful in demonstrations of magnetic field strength.
The compass needle is supported in a sealed plastic housing with transparent top and bottom.
Well suited for use on an overhead projector.
Diameter: 19 mm.
Package of 10.
The compass needle is supported in a sealed plastic housing with transparent top and bottom.
Well suited for use on an overhead projector.
Diameter: 19 mm.
Package of 10.
Properties
- F340010
- 1003095/3B,114537