A coil of wire ... make a stronger overall magnetic field. Figure caption, A solenoid, shown here in cross section, has a stronger electromagnetic field than a single straight wire The north ...

Wires, metal pipes, kitchenware: in our everyday experience, copper is not attracted to magnets. Yet lots of strange experiments show copper behaving a bit weirdly around magnetic fields.

A magnetic field forms when an electric current flows through a straight piece of insulated wire. The magnetic effect is enhanced when this wire is made into a coil. Describe the direction of the ...

“In the absence of a magnetic field, these ultra-narrow wires exhibited a nonzero resistance over a broad temperature range,” Bezryadin said. “At temperatures where thicker wires would ...

Our modified Faraday cage included a set of 3-axis coils that let us create controlled magnetic fields of high uniformity via electric current we ran through its wires. Since we live in mid ...