## Related questions with answers

Question

Calculate the value of $g_{m}$ for a BJT biased at $I_{C}=0.5 \mathrm{mA}.$

Solutions

VerifiedSolution A

Solution B

Step 1

1 of 2According to Eq.(7.62),

$\begin{align*} g_m &=\dfrac{I_C}{V_T}\\&=\dfrac{0.5\mathrm{~mA}}{25 \mathrm{~mV}}\\&=\boxed{\color{#c34632}{20\mathrm{~mA/V} }} \end{align*}$

Step 1

1 of 2Ic = 0.5 mA g(m)=Ic / V(T) =0.5 mA / 25 mV =20 m A/V

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