Nathanael A. Fortune edited textbf_please_see_specific_comments__.tex  over 8 years ago

Commit id: 4ccba038a3f9106869f510d600015632ae7331f4

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First, I think you should take a second look at the Aims section of the "better" photoelectric paper we reviewed in class. That example includes the key equations describing the physical phenomena that were investigated in their photoelectric effect measurements: (1) the relation between the energy of the photon striking the metal surface and the kinetic energy of the electron that is then ejected from the surface and (2) how they might use that fundamental physics relation to determine the value of the ``work function'' A and the value of a fundamental physics constant (actually, combination of constants) $ hc/e$.   In your case, your aims section would be expected to reference the Nyquist's prediction of a  fundamental relation between the average thermal energy of an electron (approximately $k_B T$) , and the measured \textit{root mean square ac voltage}   \begin{equation}  \label{eq:NyquistPredictionForJohnsonNoise}  V_{\textrm{Johnson noise, RMS}} = \sqrt{} = \sqrt{(4 R \Delta f) (k_B T) }  \end{equation}  across a resistor through which no current is flowing, where R is the resistor's resistance, $\Delta f$ (also known as the measurement's Equivalent Noise Band Width (ENBW)) represents the range of frequencies over which you are measuring the ac voltage generated by the random motion of the electrons.  Alternatively, if you prefer, you could express the relation in terms of the \textit{mean square ac voltage} $ = (4 R \Delta f) k_B T$.