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5H15.10 - Projection of the Magnetic Field Due to a Current in a Straight Wire

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​​5H15.10 - Projection of the Magnetic Field Due to a Current in a Straight Wire

Preview
SelectSelected
Title5H15.10 - Projection of the Magnetic Field Due to a Current in a Straight Wire
Objective

Show the shape of the magnetic field lines around current-carrying straight wire.

StatusAvailable
Assembly Instructions

Instructions
The straight wire form is mounted on a plastic base for projection on the overhead. Connect the form through a switch to the LVDC power supply and set the current for about 20 amps. Place the petri dish under the form and sprinkle on iron filings; they will align themselves with the field lines. It may be helpful to tap the plate lightly to give the filings a chance to move. After the particles are aligned, open the switch so that the form does not overheat. Note that a solenoid, a double-solenoid, and a toroid are also available.

Setup Time15
Operation Time
Preview Time5
Operation Instructions

Operation Steps
1   Turn the power supply and the overhead on
2   Press the momentary contact switch and tap the plate with the single wire.
3   The iron filings should align with the induced magnetic field lines.

ExportableNo
Demo on DimeNo
PIRA 200Yes
Export Instructions (if different)
HazardsNone
Analysis/Information
Category5 Electricity and Magnetism
Subcategory5H - Magnetic Fields and Forces
Keywordsmagnetic field of current, iron filings
Construction Information
 
  
  
straight wire mounted on plastic base
1
glass square dish 10" - for collecting iron filings
1
iron filings
power supply - 20V, 40A, Tenma, with banana plug bank
1
momentary contact switch
1
overhead projector
1
banana cable
3