How Can You Measure Magnetic Fields in a Solenoid with Junior Students?

  • Context: High School 
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    Electromagnetic
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SUMMARY

This discussion focuses on measuring magnetic fields in a solenoid for junior physics students. Participants suggest using USB-connected probes to measure weak magnetic fields, highlighting their affordability. Another method discussed involves moving a coil of wire into the solenoid and measuring the induced EMF over time to calculate the magnetic field strength. Both methods provide practical approaches for educational purposes.

PREREQUISITES
  • Understanding of electromagnetic principles
  • Familiarity with solenoids and their properties
  • Basic knowledge of electromotive force (EMF)
  • Experience with data collection using USB probes
NEXT STEPS
  • Research the specifications and pricing of USB magnetic field probes
  • Learn about the principles of electromagnetic induction
  • Explore methods for measuring EMF in coils
  • Investigate hands-on experiments involving solenoids and magnetic fields
USEFUL FOR

Physics educators, junior high school teachers, and anyone involved in teaching electromagnetic concepts to students.

hector2010
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Hi

please introduce me an electromagnetic expriment so that we can measure magnetic field in a solonoid.
I would like to use it for physics junior students.
Thank you.
 
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When I was in my E & M class, we used probes that plugged into the USB port of a computer to measure weak magnetic fields. I have no idea how much they cost, though they seemed like they would be cheap. One other simple way to measure the field strength is to move a coil of wire into the middle of the solenoid starting from far away. Then, measure the EMF across that coil as a function of time, and use the result to calculate the magnetic field.
 

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