Start by taking the iron nail, which will act as the core of your electromagnet. The nail will enhance the magnetic field created by the electric current flowing through the wire. Wrap the Copper Wire ...

When the iron is used as the core in an electromagnet and a current is passed, the magnetic field it produces penetrates the iron’s bulk and forces the tiny fields to align along the external ...

Earth's solid iron core isn't all that it seems. In fact, just this year, scientists discovered that our planet's innermost orb isn't smooth, but rather textured; and stops spinning every seven ...

The movement of atoms in the liquid outer core generate the Earth's magnetic field and the planet's broad habitability. But while the center of our planet has long been thought to be a solid iron ...

What's long baffled scientists, though, is why this imprint appears most ... We know that the Earth has an iron core surrounded by a mantle of silicate bedrock and water (oceans) on its surface.

Confirming NASA's finding in 2011, a new study agrees that the Moon’s inner core is likely solid iron. This study helps us understand the Moon’s past, including its one robust magnetic field ...

The long coil of wire is called a solenoid. How to increase the strength of an electromagnet. Increase the current going through the wire. Add more turns of wire to the solenoid. Use a soft iron core.

Like poles repel. North and South poles are attracted to each other. Did you know Earth is like a giant bar magnet thanks to its iron core? That's why the Earth has a North and South Pole. You can ...

The strength of its magnetic field depends on the electric current and the number of loops the wire makes around the core. It's possible to make an electromagnet without the iron core, but it won ...