=2 mA/V, r, = 20 k2, and R, = 20 kN,find the current gain obtained with R,%3D20 kN.%3D (c) If R, is doubled (that is, increased by 100%), find the corresponding percentage change in current gain. If R, is increased from 20 kohms to 200 kohms (that is,increased by 900%), what is the corresponding change in current gain? e) Using the results of (c) and (d), comment on the performance of the CG circuit as a current buffer.

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