News tagged with electric current
Two stopped light pulses interact with each other
(Phys.org) -- For the first time, physicists have experimentally demonstrated the interaction of two motionless light pulses. Because the stopped light pulses have a long interaction time, it increases the ...
May 08, 2012 |
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Carbon nanotubes: The weird world of 'remote Joule heating'
(Phys.org) -- A team of University of Maryland scientists have discovered that when electric current is run through carbon nanotubes, objects nearby heat up while the nanotubes themselves stay cool, like a ...
Apr 10, 2012 |
4.4 / 5 (38) |
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Research finds bright future for alternative energy with greener solar cells
(Phys.org) -- Even alternative energy technologies can sometimes be a little greener, according to a Kansas State University graduate student's research.
Apr 09, 2012 |
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First-ever use of airborne resistivity system in Antarctica allows researchers to look beneath surface in untapped terri
(PhysOrg.com) -- National Science Foundation- (NSF) funded researchers have successfully tested equipment to map the hidden distribution of groundwater and ice in the McMurdo Dry Valleys region for the first ...
Space & Earth / Earth Sciences
Mar 23, 2012 |
5 / 5 (3) |
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Researchers take first-ever measurement of auroral turbulence using a nanosatellite radar receiver
Researchers from SRI International and the University of Michigan have taken the first-ever measurement of naturally occurring auroral turbulence recorded using a nanosatellite radar receiver. The research was done with support ...
Space & Earth / Space Exploration
Mar 22, 2012 |
5 / 5 (1) |
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Ageing wooden power poles increase risk of fires
Research at RMIT University has proven conclusively that wooden poles used for electricity distribution deteriorate with age and that their electrical performance worsens over time.
Mar 13, 2012 |
4.5 / 5 (2) |
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Resetting the future of MRAM
In close collaboration with colleagues from Bochum, Germany, and the Netherlands, researchers from the Helmholtz-Zentrum Berlin, Germany, have developed a novel, extremely thin structure made of various magnetic ...
Mar 07, 2012 |
4 / 5 (4) |
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Launch madness at Wallops in March - '5 in 5'
Launch madness will hit the east coast in March as NASA launches five rockets in approximately five minutes to study the high-altitude jet stream from its Wallops Flight Facility in Virginia.
Space & Earth / Space Exploration
Mar 05, 2012 |
5 / 5 (1) |
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Unique salt allows energy production to move inland
Production of energy from the difference between salt water and fresh water is most convenient near the oceans, but now, using an ammonium bicarbonate salt solution, Penn State researchers can combine bacterial ...
Technology / Energy & Green Tech
Mar 01, 2012 |
4.5 / 5 (15) |
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Electron-detection breakthrough could unleash next-generation technologies
(PhysOrg.com) -- Physics researchers at the University of Kansas have discovered a new method of detecting electric currents based on a process called “second-harmonic generation,” similar to a radar gun for electrons ...
Feb 29, 2012 |
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With a bang, Navy begins tests on electromagnetic railgun prototype launcher
Engineers have fired the Navy's first industry-built electromagnetic railgun (EM Railgun) prototype launcher at a test facility, commencing an evaluation that is an important intermediate step toward a future ...
Feb 28, 2012 |
4.5 / 5 (20) |
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New nanotechnology converts heat into power when it's needed most
Never get stranded with a dead cell phone again. A promising new technology called Power Felt, a thermoelectric device that converts body heat into an electrical current, soon could create enough juice to make another call ...
Feb 22, 2012 |
4 / 5 (9) |
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Novel link between optical fibers, nanometer-scale silicon structures could aid development of integrated optical circui
Silicon is a unique material that has revolutionized electronics; it enables engineers to put millions of electrical devices onto a single chip. Replacing the electrical currents in this technology with beams ...
Feb 17, 2012 |
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Navy to begin tests on electromagnetic railgun prototype launcher
The Office of Naval Research (ONR)'s Electromagnetic (EM) Railgun program will take an important step forward in the coming weeks when the first industry railgun prototype launcher is tested at a facility ...
Feb 06, 2012 |
4.6 / 5 (24) |
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Magnetic random-access memory based on new spin transfer technology achieves higher storage density
Solid-state memory is seeing an increase in demand due to the emergence of portable devices such as tablet computers and smart phones. Spin-transfer torque magnetoresistive random-access memory (STT-MRAM) ...
Feb 02, 2012 |
4.5 / 5 (2) |
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Electric current
Electric current is the rate of flow of electric charge. The electric charge that flows is carried by, for example, mobile electrons in a conductor, ions in an electrolyte or both in a plasma.
The SI unit of electric current intensity is the ampere. Electric current is measured using an ammeter.
For more information about Electric current, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
