ELEC 3509 Fall 2016 Midterm Answers.pdf

# ELEC 3509 Fall 2016 Midterm Answers.pdf

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ELEC 3509 Fall 2016 Midterm Answers 1. 2. 𝑅 𝑖? = [𝑟 𝜋1 + (𝑟 ?3 ∥ 𝑟 ?2 ∥ 𝑅 𝐸1 )(1 + 𝛽)] ∥ 𝑅 1 ∥ 𝑅 2 3. 𝑉 ? 𝑉 𝜋3 = −𝑔 ? (𝑅 𝐸2 ∥ 𝑅 ???? ) 𝑉 𝜋3 𝑉 ?1 = − 𝑟 ?3 ∥ 𝑟 ?2 ∥ 𝑅 𝐸1 (𝑟 ?3 ∥ 𝑟 ?2 ∥ 𝑅 𝐸1 ) + 𝑟 ?1 𝑉 ?1 𝑉 ? = 𝑅 𝑖? 𝑅 𝑖? + 𝑅 ? 𝐴 𝑉 = 𝑉 ? 𝑉 𝜋3 × 𝑉 𝜋3 𝑉 ?1 × 𝑉 ?1 𝑉 ? 4. 𝑅 ??? = 𝑅 𝐸2 (Also gave full marks if you put r o2 and r μ2 on Q3 as long as you used a test voltage and the correct method was generally applied) 5. 𝜔 ? 𝑖? = 1 𝐶 𝑖? (𝑅 𝑖? + 𝑅 ? )

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𝜔 ? 1 = 1 𝐶 1 (𝑅 ? ∥ [𝑟 𝜋3 + {𝑟 ?2 ∥ 𝑅 𝐸1 ∥ ( 𝑟 𝜋1 + (𝑅 ? ∥ 𝑅 1 ∥ 𝑅 2 ) 1 + 𝛽 )} (1 + 𝛽)]) 𝜔 ? ??? = 1 𝐶
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