- #1
wofsy
- 726
- 0
I assume that if one has several current loops that the magnetic fields that they generate just add together linearlly. Just want to make sure.
Matterwave said:to first order they do, but I think the interaction between the current loops and other magnetic fields would induce emfs which would change the magnetic fields produced, and would further induce emfs, etc.
I suppose, if you assumed no coupling, the fields would just add linearly.
Linearity in this context refers to the relationship between the input and output of a system. In the case of multiple current loops, linearity means that the output current is directly proportional to the input current.
The linearity of multiple current loops can be determined by plotting the input and output currents on a graph and checking if the resulting curve is a straight line. If the curve is a straight line, then the multiple current loops are considered linear.
There are several factors that can affect the linearity of multiple current loops, such as the materials used, the shape and size of the loops, and the strength of the magnetic field. Any changes in these factors can cause the output current to deviate from being directly proportional to the input current, resulting in non-linearity.
Linearity is important in multiple current loops because it allows for accurate and predictable control of the magnetic field. This is essential in many scientific and technological applications, such as in electromagnets and electric motors.
Some examples of multiple current loops that exhibit linearity include solenoids, which are used in doorbells and MRI machines, and Helmholtz coils, which are used in physics experiments to produce a uniform magnetic field. These systems are designed to have a linear relationship between the input and output currents for precise control.