Faraday’s Law of Induction describes how an electric current produces a magnetic field and, conversely, how a changing magnetic field generates an electric current in a conductor.

Your navigation system just got a critical update, one that happens periodically because Earth’s magnetic north pole keeps moving. Here’s what to know.

A Magnetic Shift. Magnetic north is not fixed like its geographic counterpart, the North Pole. Instead, it meanders, driven ...

The reason behind the shifting North Pole is molten iron and nickel movement in the planet's outer core. Over the last 20 years, the iron and nickel have been flowing away from the magnetic lobe ...

If the current is flowing in an electric circuit from South to North direction and a magnetic compass is placed over the conducting wire, the needle of the compass deflects in the direction of west.

This means that if I have a loop (or coil) of wire, and I change the magnetic field inside of it, it will create an electric current in the loop, causing electric charges to move!

The magnetic north pole is now north of Canada’s Arctic islands, hundreds of miles south of the geographic north pole. It drifts more than 25 miles each year, and seems to be headed for Siberia.

When an electric current passes through a metal wire, a magnetic field forms around that wire (see diagram at right). Likewise, a wire passing through a magnetic field creates an electric current ...

This changing magnetic field then induces an electric current in another loop. Also, the more loops you have (in both coils of wires) the greater the effect. Here is simplest version of wireless ...

Although the geographic poles of the Earth (the two ends of Earth's rotation axis) remain by-and-large at the same location over a long period of time, Earth's magnetic poles are known to migrate, ...

The reason behind the shifting North Pole is molten iron and nickel movement in the planet's outer core. Over the last 20 years, the iron and nickel have been flowing away from the magnetic lobe ...