Ohm’s law is well-known from physics class. It states that the resistance of a conductor and the voltage applied to it determine how much current will flow through the conductor. The electrons in the ...

We’re surrounded by electrically powered devices these days. From our lights, to our kettles, and of course our phones! Electricity flows through copper or aluminium wire to power or charge all of ...

In an apparent contradiction to textbook physics, a metal has been identified that conducts electricity but produces almost no heat in the process. Such a strange property may be expected to occur in ...

Why do we get shocked when we come in contact with electricity? asks reader Sangpal Meshram. Don't touch an electrical outlet with wet hands. Keep hair dryers away from sinks and bathtubs. And never, ...

Using a laser to stimulate a photocurrent and a magnetic field to control it, researchers have devised a scheme for measuring a current’s flow stream. Why there’s a need to assess current-flow ...

Tantalum disulfide is a mysterious material. According to textbook theory, it should be a conducting metal, but in the real world it acts like an insulator. Using a scanning tunneling microscope, ...

(Nanowerk News) Ohm’s law is well-known from physics class. It states that the resistance of a conductor and the voltage applied to it determine how much current will flow through the conductor. The ...