Measuring magnetic field of an air coil


  • Solenoid with holder with variable no. of turns.
  • Power supply 0-30V, 3A.
  • Tesla meter.
  • Magnetic field probe.
  • Cables.


In this experiment, we can study the magnetic field of an air coil in which the length L can be varied for a constant number of turns N. For the magnetic, field the relationship


To Measure the magnetic field B of a long air coil as a function of the current I.

To determine the magnetic field constant μ0.

To measure the magnetic flux density along the axis of long coils.