Earth’s magnetosphere, once thought to have a simple electric polarity pattern, has revealed a surprising twist. New ...

Equipotential Surfaces: These are surfaces where the electric potential is constant. Electric field lines are always perpendicular to equipotential surfaces. Calculating the electric field at a given ...

In a metal like copper, however, the outer electrons swim around freely and are shared by all the atoms. That’s why ...

Placing materials under extremely strong magnetic fields can give rise to unusual and fascinating physical phenomena or ...