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Fluorescent lamp, a device with negative differential resistance. [1] In operation, an increase in current through the fluorescent tube causes a drop in voltage across it. If the tube were connected directly to the power line, the falling tube voltage would cause more and more current to flow, causing it to arc flash and destroy itself.
[1] [2] In operation, an increase in current through the fluorescent tube causes a drop in voltage across it. If the tube were connected directly to the power line, the falling tube voltage would cause more and more current to flow, until it destroyed itself. [1] [3] To prevent this, fluorescent tubes are connected to the power line through a ...
Coldwater Creek (also Cold Water Creek) is a 19-mile tributary of the Missouri River in north St. Louis County in the U.S. state of Missouri. [1] It is known to be contaminated with radioactive wastes several miles upstream of its northern mouth.
The Missouri River is a river in the Central and Mountain West regions of the United States.The nation's longest, [13] it rises in the eastern Centennial Mountains of the Bitterroot Range of the Rocky Mountains of southwestern Montana, then flows east and south for 2,341 miles (3,767 km) [6] before entering the Mississippi River north of St. Louis, Missouri.
Map of the Missouri River watershed The White River flowing into the Missouri River and coloring it with clay. Tributaries of the Missouri River, a major river in the central United States, are listed here in upstream order. These lists are arranged into river sections between cities or mouths of major tributaries for ease of navigation.
Once the tube strikes, the impinging main discharge keeps the cathodes hot, permitting continued electron emission without the need for the filaments to continue to be heated. The starter switch does not switch on again because the resistance in the tube drops and the voltage across the starter is insufficient to start a glow discharge again. [2]
A pregnant woman is recovering in the hospital after she was stabbed multiple times by a pizza delivery driver over the size of her tip, according to reports. The incident happened on Sunday, Dec ...
The New Madrid seismic zone (NMSZ), sometimes called the New Madrid fault line (or fault zone or fault system), is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the Southern and Midwestern United States, stretching to the southwest from New Madrid, Missouri. The New Madrid fault ...