A block diagram of a linear circuit is shown in Figure P (3=37). When (v_{mathrm{S}}=20 mathrm{~V}) and

Question:

A block diagram of a linear circuit is shown in Figure P $3=37$. When $v_{\mathrm{S}}=20 \mathrm{~V}$ and $i_{\mathrm{S}}=40 \mathrm{~mA}$, the output voltage $v_{\mathrm{O}}$ $=20 \mathrm{~V}$. The output voltage is $80 \mathrm{~V}$ when the voltage source is off or $v_{\mathrm{S}}=\mathrm{oV}$ and the current source is $i_{\mathrm{S}}=20 \mathrm{~mA}$. Find the values of $K_{1}$ and $K_{2}$. Then find the output voltage when $v_{\mathrm{S}}=$ $20 \mathrm{~V}$ and $i_{\mathrm{S}}=-20 \mathrm{~mA}$.

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