Plug loads refer to electric power consumed by products through an ordinary alternating current plug socket.
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Almost all of the electricity moved over grids is in the form of alternating current.
Large-scale electricity transmission usually uses alternating current, in which both current and voltage oscillate.
Alternating current can't go very far without having to be pushed along, so it requires power-guzzling substations.
An inverter converts the direct current from the battery into the alternating current for feeding the grid.
Even Thomas Edison bet badly, as in his development of direct-current electricity that proved inferior to alternating current.
Inverters and microinverters convert the direct current (DC) power produced by solar panels into alternating current (AC) used in homes and businesses.
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Their job is to convert high-voltage alternating current from the mains into low-voltage direct current for mobile phones, laptops, iPods and other electronic gadgets.
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These devices transform the direct current generated by a solar panel or electric car battery into the alternating current you expect from a wall socket.
High-voltage DC can carry power over long distances at lower cost than alternating current, but the transformers still cost too much to make the idea widespread.
Yet it's scarcely visible in the market for solar panel inverters, devices that turn the direct current power generated by solar panels into alternating current for the grid.
Traditional inverters gather power from all or most of the panels in an installation and use transformers, capacitors and switches to change it from direct current to alternating current.
Alternating current causes two plates to attract or repel each other, sucking air in or blowing air out like as a tiny bellows would -- one that resonates at over 100Hz.
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At 400 kilovolts, a standard value for long-distance transmission, an alternating current 30 metres (100 feet) from the ground has a fortieth of the loss of a similar cable at ground level.
One of the considerations was the relative safety of direct current - the first electric chair seems to have been built (and then used) to prove that alternating current was more of a killer.
Although they have not been found to cause any harm, the cables on conventional pylons, which transmit a three-phase alternating current, generate a strong electric field and a continuous buzz of low-frequency radio waves.
Also, alternating current leaks more electricity in transit.
That inverter changes the current to alternating current.
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Since 2005, the company has stood out in the fast-moving LED industry with an innovation that allows LEDs to be powered by alternating current, or AC, rather than requiring a transformer that turns AC into direct current.
The fan is the first venture into consumer products for Versa Drives, a Indian manufacturer of alternating-current drives.
With more than 700 patents to his name, Tesla invented radio, the coil transformer, wireless communication, fluorescent lights and the alternating-current motor, which allowed electricity to flow over long distances.
They can carry five to 20 times more current in the same unit area while reducing the amount of energy lost as heat by 75-97% (depending on whether the current is alternating or direct), even after accounting for all the nitrogen-cooling paraphernalia.
Advertising history is filled with alternating bursts of hard and soft selling over the years, points out industry author James Twitchell, with the current trend coming on the heels of several years of softer messages focused on entertainment.
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