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Lab 10 JFET Common Source Amplifier Student Name: Date Student ID#: Objectives: To investigate the operation of CS IFET amplifier and determining the Voltage gain. Components and equipment required: FET Transistor BFW 11, Ra 100 KN, Rọ 1 KQ, R, 1 KM2,, 2 capacitors, DC supply, Oscilloscope and AC generator. Procedure: Build the JFET CS Amplifier Circuit. VOD DS Vin VI 100 VOS Fig. 1. Part One: DC Part 1- Measure the DC parts (Without ac source and without capacitors). 2- Measure ID, VGS, VDS before connecting ac part. ID=-4.159mA VGS-675.922 MV VDS-840.759MV 3- Compute gm 4- Add ac parts (ac source, capacitors and RL). 5- Use Vin with VP-100mV, f-10KHz, VGG=1 V. 6- Use Oscilloscope to display V₁, and V... 7. Compute Voltage Gain. Part Two: ac Part Vog 1V BTVyk 10KM 0 R1 m 100k 01 BEWIL VDS 6.0V R2 m 110 C1 Vout 100F R3 10

Sketch Vin and Vout Discussion: 1. Measure Vos 1.13, Vas-1.126MVand 2. Measure Vin p-p 3. Measure Vout p-p= 4. Calculate the amplifier VG- Vout/Vin Vgain 5. Describe the phase shift between the output and the input: 6. Discuss (Calculate the parameters and compare): los -3.87 mA