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In a transistor circuit shown here the base current is $35 \mu$. The value of the resistor $R_8$ is

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$257 \mathrm{k} \Omega$
$V_b=i_b R_b \Rightarrow R_b=\frac{9}{35 \times 10^{-6}}=257 \mathrm{k} \Omega$.
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