Uploaded November 2020 | Updated September 2026, 3 weeks ago

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This video is one of 6 videos which can be used to investigate how the magnetic field strength around a current carrying wire is related to the radial distance from that wire and the size of the current in the wire. A compass is used to determine the direction of the net magnetic field at different distances from the wire for different amounts of current. The 1st video linked below is an introduction to the lab and shows how to calculate the magnetic field strength using the compass.

Magnetic Field Strength of a Wire Lab Introduction: youtu.be/OGx5gjoFGno


The 1st three data collection videos linked below are used to determine the relationship between the strength of the magnetic field around a wire and the radial distance from that wire. Each of the three videos uses a different constant current in the wire to create the magnetic field.

Magnetic Field Strength Lab (Data Set #1) B vs. r: youtu.be/1ch5Aj7PUeA
Magnetic Field Strength Lab (Data Set #2) B vs. r: youtu.be/1SPFb5bfdVY
Magnetic Field Strength Lab (Data Set #3) B vs. r: youtu.be/WFf17tUl4So

The last three data collection videos linked below are used to determine the relationship between the strength of the magnetic field around a wire and the radial distance from that wire. Each of the three videos uses a different constant radial distance while the current is changed.

Magnetic Field Strength Lab (Data Set #4) B vs. I: youtu.be/asOfAlpDIFw
Magnetic Field Strength Lab (Data Set #5) B vs. I: youtu.be/vn_DVyNZqdk
Magnetic Field Strength Lab (Data Set #6) B vs. I: youtu.be/FeDN-eSFDgc