• resistance
  • The root mean square (RMS) voltage due to thermal noise vn, generated in a resistance R (ohms) over bandwidth Δf (hertz), is given by v n = 4 k B T R Δ f {\displaystyle v_{n}={\sqrt {4k_{B}TR\Delta f}}} where kB is Boltzmann's constant (joules per kelvin) and T is the resistor's absolute temperature (kelvin). (wikipedia.org)
  • circuit
  • This can be caused, for example, in a signal circuit referenced to ground, if enough current is flowing in the ground to cause two points to be at different potentials. (wikipedia.org)
  • 9 . The equipment of claim 1 , further comprising a timer adapted to control the electric vehicle supply circuit. (google.ca)
  • 11 . The equipment of claim 10 , wherein the timer is adapted to enable and disable the electric vehicle supply circuit at a predetermined time. (google.ca)
  • 16 . The equipment of claim 9 , where the timer is integral with the electric vehicle supply circuit. (google.ca)
  • As the amount of thermal noise generated depends upon the temperature of the circuit, very sensitive circuits such as preamplifiers in radio telescopes are sometimes cooled in liquid nitrogen to reduce the noise level. (wikipedia.org)
  • In electronic circuit theory, a "ground" is usually idealized as an infinite source or sink for charge, which can absorb an unlimited amount of current without changing its potential. (wikipedia.org)
  • It was then discovered, probably by the German scientist Carl August Steinheil in 1836-1837, that the ground could be used as the return path to complete the circuit, making the return wire unnecessary. (wikipedia.org)
  • Thus
  • A tube may not exhibit the full shot noise effect: the presence of a space charge tends to smooth out the arrival times (and thus reduce the randomness of the current). (wikipedia.org)
  • utility
  • 21 . The equipment of claim 9 , wherein the timer is adapted to coordinate with an electric utility. (google.ca)
  • In New York City, a woman named Jodie S. Lane was electrocuted by a five-foot by eight-foot road utility vault plate energized by an "improperly insulated wire" in January 2004. (wikipedia.org)
  • ground
  • Wiring practices that protect against ground loops include ensuring that all vulnerable signal circuits are referenced to one point as ground, so that no potential differences can occur. (wikipedia.org)
  • Removal of safety ground connections to equipment in an effort to eliminate ground loops also eliminates the protection the safety ground connection is intended to provide. (wikipedia.org)
  • Two circuits share a common path to ground. (wikipedia.org)
  • 0} ), yielding no voltage drop across it, V G = 0 {\displaystyle \scriptstyle V_{G}=0} , keeping the connection point between the circuits at a constant ground potential. (wikipedia.org)
  • Unlike transformer-type baluns, autotransformer baluns connect all the wires connected to them to a single ground voltage level. (wikipedia.org)
  • Since outdoor antennas are prone build-up of static electric charge, the path for the static to drain to ground through an autotransformer balun can be a distinct advantage. (wikipedia.org)
  • Electrical circuits may be connected to ground (earth) for several reasons. (wikipedia.org)
  • This is done to prevent harm resulting to the user from coming in contact with any such dangerous voltage in a situation where the user may, at the same time, also come in contact with an object at ground/earth potential. (wikipedia.org)
  • An electrical ground system should have an appropriate current-carrying capability to serve as an adequate zero-voltage reference level. (wikipedia.org)
  • The use of the term ground (or earth) is so common in electrical and electronics applications that circuits in portable electronic devices such as cell phones and media players as well as circuits in vehicles may be spoken of as having a "ground" connection without any actual connection to the Earth, despite "common" being a more appropriate term for such a connection. (wikipedia.org)
  • audio
  • Each shift in offset voltage or current lasts for several milliseconds, and the intervals between pulses tend to be in the audio range (less than 100 Hz), leading to the term popcorn noise for the popping or crackling sounds it produces in audio circuits. (wikipedia.org)
  • different
  • The terms phone plug and phone jack are sometimes used to refer to different genders of phone connectors, but are also sometimes used colloquially to refer to RJ11 and older telephone plugs and the corresponding jacks that connect wired telephones to wall outlets. (wikipedia.org)
  • once
  • 6. Rotate the reed by 180 degrees and insert it inside the reel so that the thread loops once around the reed. (scribd.com)
  • equipment
  • The original ​1⁄4 in (6.35 mm) version dates from as early as 1878, when an early version was used for the first commercial manual telephone exchange in New Haven, Connecticut created by George W. Coy, making it perhaps the oldest electrical connector standard still in use, to this day being the most prominent plug connector on mainstream musical equipment, especially on standard electric guitars models. (wikipedia.org)
  • charge
  • Shot noise in electronic devices results from unavoidable random statistical fluctuations of the electric current when the charge carriers (such as electrons) traverse a gap. (wikipedia.org)
  • The root-mean-square value of the shot noise current in is given by the Schottky formula i n = 2 I q Δ B {\displaystyle i_{n}={\sqrt {2Iq\Delta B}}} where I is the DC current, q is the charge of an electron, and ΔB is the bandwidth in hertz. (wikipedia.org)
  • time
  • The Human Resources Department is accepting applications for the regular and full-time position of Senior Power Plant Engineer in the Electric Department. (calopps.org)
  • various
  • A universal junction box, which includes multiple methods for securing cables, various kinds of wires and conduits and multiple methods for securing the box within a wall cavity. (google.com)
  • A considerable variety of line plugs and panel sockets is available, including plugs suiting various cable sizes, right-angle plugs, and both plugs and sockets in a variety of price ranges and with current capacities up to 15 amperes for certain heavy duty ​1⁄4 in versions intended for loudspeaker connections. (wikipedia.org)
  • computer
  • Examples of such channels are copper wires, optical fibers, wireless communication channels, storage media and computer buses. (conceptdraw.com)
  • primary
  • The current sent into the balun through one pair of connections acts as if it were a primary coil, and magnetizes the entire core. (wikipedia.org)