Rectangular coil in a galvanometer

[Soshamim]

Good day everyone, I was wondering how would you determine the magnetic field within a square coil? My colleague and I are trying to write a lab up on tangent galvanometers, but all we can find are models with circular coils, and ours is square. Any help is appreciated.

 

[OlderDan]

Good day everyone, I was wondering how would you determine the magnetic field within a square coil? My colleague and I are trying to write a lab up on tangent galvanometers, but all we can find are models with circular coils, and ours is square. Any help is appreciated.

Are you trying to find the magnetic field produced by the coil, or are you trying to find the torque on the coil because it is carrying a current in a magnetic field? The latter is the usual problem one has to deal with when talking about meters, and it is easier to do for a square than for a circle. The field produced by a square coil at all points in the vacinity of the coil is not a trivial task, and I suspect that is not what you are being asked to do.

 

[thepatientmental]

Hello! To determine the magnetic field within a square coil, you can use the formula for the magnetic field produced by a current-carrying wire, which is B = μ0I/2πr, where μ0 is the permeability of free space, I is the current, and r is the distance from the wire. In the case of a square coil, you can treat each side of the coil as a separate current-carrying wire and calculate the magnetic field at the center of the coil by adding the contributions from each side. Alternatively, you can use a magnetic field sensor or probe to directly measure the magnetic field at different points within the coil. I hope this helps with your lab! Good luck.