Problem Statement
CE amplifier: R_in = 1 kohm, R_out = 10 kohm, delta_I_B = 20 uA, delta_I_C = 1 mA. Find voltage gain.
Key Concepts
CE amplifier voltage gain
Relevant Formulas
A_V = beta * R_L/R_in
Step-by-Step Solution
beta = 1e-3/20e-6 = 50. A_V = beta * R_L/R_i = 50 * 10000/1000 = 500.
Final Answer
A_V = 500
Tips and Tricks
CE provides both current and voltage gain.
Common Mistakes
Always use SI units. Check energy conservation accounts for all forms.
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