How are the magnetic fields produced by wires and solenoids?
In this post, we conduct investigations into and describe quantitatively the magnetic fields produced by wires and solenoids, as a part of the Prelim Physics course under the module Electricity and Magnetism and sub-part Magnetism. The relationships that are investigated are:
- B = \frac{ \mu _{0} I}{2 \pi r}
- B = \frac{ \mu _{0} N I}{L}
The following two videos explain how magnetic fields are created by wires and solenoids.
Part 1: Magnetic field created by a current-carrying wire