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Consider the diode circuit shownbelow.The diode, D, obeys the current-voltage characteristic$I_{D}= I_{S}\left(\exp\left( \frac{V_{D}}{nV_{T}}\right)-1\right),$ where $n> 1, V_{T}> 0,V_{D}$ is the voltage across the diode and $I_{D}$ is the current through it. The circuit is biased so that voltage, $V> 0$ and current, $I< 0$. If you had to design this circuit to transfer maximum power from the current source $(I_{1})$ to a resistive load (not shown) at the output, what values of $R_{1}$ and $R_{2}$ would you choose?

  1. Large $R_{1}$ and large $R_{2}$
  2. Small $R_{1}$ and small $R_{2}$
  3. Large $R_{1}$ and small $R_{2}$
  4. Small $R_{1}$ and large $R_{2}$
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