# JFET Circuit Amplifier

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The attached figure shows an amplifier circuit.

- Sketch the small-signal equivalent circuit of the amplifier and use it to estimate the voltage gain.

- Attempt to calculate the quiescent value of VOUT.

Hint : Apply the appropriate equation:

IDS=2xIDSS/Vp^2(VDS[VGS-VP]-VDS^2/2)

Or

IDS = IDSS(1-VGS/Vp)^2

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