$\begin{array}{1 1} 0.0336 \Omega \\ 0.336 \Omega \\ 3.36 \Omega \\ 0.00336 \Omega \end{array} $

Solution :

$V= 0.7\;V$

$\therefore \large\frac{eV}{K_BT}=\large\frac{1.6 \times 10^{-19} \times 0.6}{8.6 \times 10^{-5} \times 1.6 \times 10^{-19} \times 300}$

$\qquad= 27.14 $

$I=5 \times 10^{-12}\bigg[e^{27.14}-1\bigg]$

$\quad= 5 \times 10^{-12} [6.07 \times 10^{11}-1]$

$\qquad= 3.305\;A$

$\Delta I= 3.035 -0.063$

$\qquad= 2.972\;A$

$\Delta V= 0.7 -0.6 =0.1\;V$

Dynamic resistance $= \large\frac{\Delta V}{\Delta I}= \frac{0.1\;V}{2.972\;A}$

$\qquad= 0.336 \Omega$

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