A direct current flows in only one direction. On a voltage-time graph this would appear as a straight horizontal line at a constant voltage. Car batteries, dry cells and solar cells all provide a ...

electric current to water flow, and resistance to changes in pipe volume. Of course, you probably figured out that analogy doesn’t — ahem — hold water to some level of detail, but just how f ...

The current flows in one direction as the magnet is pushed in, and in the other direction as the magnet is removed. In other words, an alternating current is produced. If you hold the magnet ...

Diodes close diodeAn electrical device that allows current to flow in one direction only. are electronic components that can be used to regulate the voltage in circuits and to make logic gates.

Researchers Ibuki Taniuchi, Ryota Akiyama, Rei Hobara, and Shuji Hasegawa of the University of Tokyo have demonstrated that ...

A team of researchers has made a remarkable breakthrough in spintronic technology, achieving a one-directional flow of spin-polarized current in a single-atom layer of thallium-lead alloys. This advan ...

Researchers at the University of Tokyo have demonstrated that the direction of the spin-polarized current can be restricted ...

Then the diode was known as a "valve," because it forced current in the tube to travel exclusively in one direction. Getting that single directional flow was critical for radio sets which needed ...

When circular polarized light is irradiated onto a thallium lead alloy, the majority “up spins” of electrons flow in the right direction (spin-polarized current). (Image: Taniuchi et al 2025) Diodes ...