Question

What is produced by a stream of electrons flowing through a wire that is coiled around an iron core? (A magnetic field; a static field; an atomic field; a radiation field)

Answer 1

A stream of electrons flowing through a wire that is coiled around an iron core produces a **magnetic field**. This phenomenon is described by Ampère's law and is a fundamental principle in electromagnetism. When current flows through the coiled wire, it generates a magnetic field around the coil, and the presence of the iron core enhances this magnetic field due to the iron's ferromagnetic properties.