News tagged with electrical field

An unexpected clue to thermopower efficiency

Scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) and their colleagues have discovered a new relation among electric and magnetic fields and differences in ...

Jul 28, 2011
4.9 / 5 (18) 6 | with audio podcast

Ultrafast switch for superconductors

(PhysOrg.com) -- A high-temperature superconductor can now be switched on and off within a trillionth of a second – 100 years after the discovery of superconductivity and 25 years after the first high-temperature ...

Jul 06, 2011
4.3 / 5 (9) 6 | with audio podcast

Putting a new spin on computing

(PhysOrg.com) -- Physicists at the University of Arizona have achieved a breakthrough toward the development of a new breed of computing devices that can process data using less power.

Jun 21, 2011
4 / 5 (5) 6 | with audio podcast

Microtechnology: Miniature magnetic switches

Transistors are commonly used in electronics as switches to turn an electrical current on or off. For applications that require a very large ratio between the on and off current, however, it is necessary to ...

Apr 14, 2011
5 / 5 (2) 0

Cable-free charging of electric cars via coils

In the future, motorists will no longer need a cable to recharge the batteries of their electric cars, thanks to a development project for inductive charging, which Siemens presented at Hannover Messe 2011. ...

Apr 11, 2011
5 / 5 (6) 3