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The siemens (symbol: S) is the unit of electric conductance, electric susceptance, and electric admittance in the International System of Units (SI). Conductance, susceptance, and admittance are the reciprocals of resistance, reactance, and impedance respectively; hence one siemens is equal to the reciprocal of one ohm (Ω −1) and is also referred to as the mho.
The SI unit of electrical conductivity is siemens per metre (S/m). Resistivity and conductivity are intensive properties of materials, giving the opposition of a standard cube of material to current. Electrical resistance and conductance are corresponding extensive properties that give the opposition of a specific object to electric current.
where is the length of the conductor, measured in metres (m), A is the cross-sectional area of the conductor measured in square metres (m 2), σ is the electrical conductivity measured in siemens per meter (S·m −1), and ρ is the electrical resistivity (also called specific electrical resistance) of the material, measured in ohm-metres (Ω ...
Data source: GE presentations. Chart by author. Order growth in a challenging year. GE's excellent order growth needs to be considered in the context of a challenging year for engine deliveries ...
Symbol [1] Name of quantity Unit name Symbol Base units E energy: joule: J = C⋅V = W⋅s kg⋅m 2 ⋅s −2: Q electric charge: coulomb: C A⋅s I electric current: ampere
GE's Power Conversion Business Signs Contracts in Excess of $120 Million to Support Petrobras' Pre-Salt Drilling Program with Its Advanced Power and Propulsion Technology.
GE, GL – General Electric Corp. (not British General Electric Company) HK – Heintz & Kaufman, Ltd. (San Francisco, California, USA) HY – CBS/Hytron; ML – Machlett Laboratories, Inc. NL – National Electronics, Inc. NU – National Union Electric Corp. PL – Philips N.V. RCA – RCA/Radiotron; SV – Svetlana/Светлана
Grocery prices continue to eat a hole in household budgets, with many Americans citing the economy and inflation as top issues behind their votes in the November 5 election. But there are signs ...