Question: Figure shows an amplifier constructed from a field-effect transistor with mutual conductance g m = 2 ? 10 -3 S. For small a.c. signals v

Figure shows an amplifier constructed from a field-effect transistor with mutual conductance g_m = 2 ? 10^-3 S.

For small a.c. signals v_in calculate:

(i) The voltage gain of the amplifier;

(ii) The input impedance.

(The capacitors C₁ and C₂ can be assumed to have negligible a.c. impedances.)

o 49 V Vin H 4 O 1 kn 3 0

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To a good approximation we can assume that the gate of the FET draws no current and that there is infinite impedance between the drain and the source ... View full answer

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