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Its reduction with increasing frequency, as the ratio of skin depth to the wire's radius falls below about 1, is plotted in the accompanying graph, and accounts for the reduction in the telephone cable inductance with increasing frequency in the table below. The internal component of a round wire's inductance vs. the ratio of skin depth to radius.
Electrum was often referred to as "white gold" in ancient times but could be more accurately described as pale gold because it is usually pale yellow or yellowish-white in color. The modern use of the term white gold usually refers to gold alloyed with any one or a combination of nickel, silver, platinum and palladium to produce a silver ...
A 2.26 kΩ, 1%-precision resistor with 5 color bands (), from top, 2-2-6-1-1; the last two brown bands indicate the multiplier (×10) and the tolerance (1%).. An electronic color code or electronic colour code (see spelling differences) is used to indicate the values or ratings of electronic components, usually for resistors, but also for capacitors, inductors, diodes and others.
See also sweat gland, eccrine sweat gland and Autonomic nervous system.. The ESC measurement relies on the particularities of the outer-most layer of the human skin, the stratum corneum (SC), which consists of a lipid corneocyte matrix crossed by skin appendages (sweat glands and their follicles) as described in Electrical properties of skin at moderate voltages: contribution of appendageal ...
The word white covers a broad range of colors that borders or overlaps pale yellow, tinted brown, and even very pale rose. White gold is an alloy of gold and at least one white metal (usually nickel, silver, platinum or palladium). [5] Like yellow gold, the purity of white gold is given in karats. White gold's properties vary depending on the ...
For power circuits, the color-coding uses the same colors as residential construction, and adds the additional wires used for three-phase systems. Black, Red and Blue are used for hot wires and White is used as the neutral wire in a 120/208 V circuit. Brown, Orange and Yellow are used as hot wires and gray is used as the neutral wire in a 277/ ...
Coke or Pepsi. Chevy or Ford. Mac or PC. The classic debates were suddenly eclipsed Thursday when the Internet exploded with deliberation over the colors of a dress posted to Tumblr. Some saw a ...
[5] which contains an article from Electrical Apparatus magazine which contains: The effective thickness of the "skin" carrying most of the current is about 3/8" for copper conductors at 60 Hz. When a circular cable exceeds about 3/4" in diameter, then, the material at the center carries little current. Large tubular busbars are therefore hollow.