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Problem 3: BJTs (28pts) R1 = 2 kΩ, R2 = 20 kΩ VA is large, so you can neglect go. IB = 15 μA Include proper units for full credit and show your work. Unless otherwise specified and if appropriate, give an equation and a number answer. For the circuit shown above, answer the following questions: (v) (Extra Credit) What is the numeric value of the small signal gain? (2pts) (vi) (Extra Credit) What is the value of the input resistance at the base of the transistor? (2pts)

Problem 3: BJTs (28pts) R1 = 2 kΩ, R2 = 20 kΩ VA is large, so you can neglect go. IB = 15 μA Include proper units for full credit and show your work. Unless otherwise specified and if appropriate, give an equation and a number answer. For the circuit shown above, answer the following questions: (v) (Extra Credit) What is the numeric value of the small signal gain? (2pts) (vi) (Extra Credit) What is the value of the input resistance at the base of the transistor? (2pts)

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Problem 3: BJTs (28pts)
R 1 = 2 k Ω , R 2 = 2 0 k Ω V A is large, so you can neglect g 0 . I B = 1 5 μ A Include proper units for full credit and show your work. Unless otherwise specified and if appropriate, give an equation and a number answer. For the circuit shown above, answer the following questions: (v) (Extra Credit) What is the numeric value of the small signal gain? (2pts) (vi) (Extra Credit) What is the value of the input resistance at the base of the transistor? (2pts)

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