![The sense in which the field changes in the loop determines the direction in which the current flows (see the bottom picture on the right). Inserting and withdrawing the coil (as shown) produces driving voltages which push in different directions; this leads to ... The sense in which the field changes in the loop determines the direction in which the current flows (see the bottom picture on the right). Inserting and withdrawing the coil (as shown) produces driving voltages which push in different directions; this leads to ...](http://pages.uoregon.edu/~imamura/102/images/homopolar-inductor.gif)
The sense in which the field changes in the loop determines the direction in which the current flows (see the bottom picture on the right). Inserting and withdrawing the coil (as shown) produces driving voltages which push in different directions; this leads to ...
![Dipole magnetic field created by current flowing though a coil of wire. | Download Scientific Diagram Dipole magnetic field created by current flowing though a coil of wire. | Download Scientific Diagram](https://www.researchgate.net/publication/3431275/figure/fig1/AS:670714713620487@1536922257154/Dipole-magnetic-field-created-by-current-flowing-though-a-coil-of-wire.png)