Alternating Current. An electrical current which changes over time, usually in a sinusoidal fashion. Usually associated with mains electricity.
ABS ...
AC Power - Alternating Current which is used to operate your digital camera directly from the mains supply rather than a battery. Sometimes supplied, but normally requires additional expense.
AC - Alternating Current Electrical current that reverses (or alternates) at regular intervals. Achromat (achromatic objective) Describes a correction class for objectives.
AC refers to alternating current electricity. Many CCTV products use 24 volts AC, for which a separate power transformer is required.
acroynm for volts alternating current.
vacuum
(1) air evacuation system that creates suction between a substrate and the printing base to hold the substrate in position during printing; ...
A small generator of alternating current with permanent magnets, used in the ignition system of most modern aircraft engines because it produces a hotter spark at high engine speeds than a typical automobile battery system, ...
To boost voltage in this way, you need a fluctuating current, like the AC current (alternating current) in your house. But a battery puts out constant DC current (direct current), which does not fluctuate.
These city lights were still; it was the camera's orientation that changed during the exposure. The dashed pattern the individual lights trace is due to alternating current.
 See also: Image, Light, Stand, Camera, Time
  
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