Magnetic Field - Eme Set - Two-Turn Helix

Purpose

To visualize the magnetic field around a two-turn helix.
 

Equipment

EME magnetic field apparatus with battery electric current source on overhead projector.◙

 

Suggestions

This is a portable version; a better choice in Physics classrooms is J5-16: MAGNETIC FIELD AROUND◙WIRE, LOOP, SOLENOID.
 

Images

j5-12

Description

The magnetic field around a two-turn helix can be visualized by sprinkling iron filings in the area around◙where the helix passes through a plastic sheet which is positioned on an overhead projector. Alternatively, small compasses can◙be arranged within and around the helix.
 

References

E.M.E. Electromagnetism Series, Teacher's Guide, Unit 3: Helix Magnetic Field.