4–11

(a) Find an expression for the voltage gain vO=vS in Figure P4–11.

(b) Let RS = 1kΩ, RL = 1kΩ, and μ = 200. Find the voltage gain vO=vS as a function of RF. Find the voltage gain for three values of RF: ∞, 0 Ω, and 1 kΩ.

(c) Simulate the circuit in Multisim and perform a parameter sweep on RF from 10 Ω to 10MΩ. Use the cursor to find your output at RF = 1kΩ. How does your answer compare with part (b)?

Transcribed Image Text:

VS Rs RF ww + 1x +1 +- x RLVO FIGURE P4-11