Conductance - kondakutansu (English spelling) conductance

Japanese: コンダクタンス - こんだくたんす(英語表記)conductance
Conductance - kondakutansu (English spelling) conductance

In a DC circuit, this is the quantity that indicates how easily current flows when a voltage is applied to the circuit. It is equal to the reciprocal of the resistance component (symbol: R ). In other words, the current is proportional to the conductance.

In AC circuits, it refers to the real part of admittance (symbol: Y ). If AC current is considered to be the sum of a component in phase with the applied voltage and a component that is out of phase with π (pi) radians, conductance represents the ease with which the current component in phase with the voltage flows. Its unit is siemens (S). Its symbol is G , and the relationship is G = 1/ Z ( Z is impedance) and Y = G + jB ( j is the imaginary unit, B is susceptance).

[Madashi Fuse and Masazumi Yoshizawa]

[Reference] | Admittance

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

直流回路において、回路に電圧を加えたときの電流の流れやすさを表す量のこと。抵抗成分(記号はR)の逆数に等しい。すなわち、電流はコンダクタンスに比例する。

 また、交流回路においてはアドミタンス(記号はY)の実数部をいう。交流電流を、加えた電圧と同位相の成分とπ(パイ)ラジアンずれた位相の成分の和と考えると、コンダクタンスは電圧と同位相の電流成分の流れやすさを表している。単位はジーメンス(S)。記号はGで、G=1/ZZはインピーダンス)、YGjBjは虚数単位、Bはサセプタンス)の関係である。

[布施 正・吉澤昌純]

[参照項目] | アドミタンス

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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