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回答时间：2024-05-01 03:43
Johnson noise is purely an effect of resistance
热噪声纯粹是电阻的效应。
Johnson noise voltage
热噪声电压
The johnson noise of plex impedances consists only of the johnson noise of the resistive part of the impedance , so pure capacitance or inctance does not have johnson noise , even though it has an impedance
复阻抗的热噪声仅仅是电阻部分的热噪声，因此理想的电容器或电感器虽然有阻抗，但并没有热噪声。
A final " imperfection " of resistors is an inconvenience but cannot properly be regarded as an imperfection as it is a fundamental property of all resistors : thermal or johnson noise
关于电阻的非理想特性，最后一项内容是热噪声，也称为约翰逊噪声。其实这并不能称为完全意义上的非理想特性，它是电阻的固有性质，任何电阻器都不例外。
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