Lucy Liang edited subsection_Johnson_Noise_Johnson_noise__.tex  over 8 years ago

Commit id: 0417b11ce2a3c90eaf68ac98a3d9865ca9a1aa3e

deletions | additions      

       

V_{\textrm{Johnson noise, RMS}} = \sqrt{} = \sqrt{(4 R \Delta f) (k_B T) }  \end{equation}  where $R$ is the resistance of the resistor, conductor,  $\Delta f$ is the equivalent noise bandwidth (ENBW), $k_B$ is the Boltzmann constant (what we are hoping trying  to reproduce), find),  $T$ is the temperature of the room, conductor,  and $\sqrt{}$ is the measured voltage from the preamp. voltage.  The %The  ENBW is what we use to represent the frequencies we use in order to vary the ac voltage that is generated from the random fluctuations of electrons within the resistor. We will be measuring the $\sqrt{}$, the $\Delta f$, the $T$, and the $R$ in order to find the $k_B$.