Solve the falling wire problem to find terminal velocity in a magnetic field. See how motion through a magnetic field induces an emf and current, creating a magnetic force that opposes the fall (Lenz’s Law).

As the iron and nickel inside our planet shift, so does Earth's magnetic field, meaning the North (and South) Poles are also constantly on the move. Recently, the position of the magnetic North Pole was officially changed, as it continues its shift away from Canada and towards Siberia.

Over 40,000 years ago, Earth’s magnetic field underwent a full reversal, a rare phenomenon in which the North and South magnetic poles switched places. Now, using satellite data and ground-based magnetic records,

This magnetic field-current phase diagram shows the high sensitivity of the voltage plateau to magnetic field. When the plateau disappears, the superconductive state expands. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...

A research team led by Kuang Guangli and Jiang Donghui at the High Magnetic Field Laboratory of the Hefei Institutes of Physical Science of the Chinese Academy of Sciences (CHMFL), has developed a "pocket-type" high-temperature superconducting (HTS) coil,

Add Yahoo as a preferred source to see more of our stories on Google. Earth's Flipping Magnetic Field Heard as Sound Is an Unforgettable Horror Earth's magnetic field dramatically flipped roughly 41,000 years ago. We can now experience this epic upheaval ...