Q4) Answer question related to circuit giver Given vs(t) = 15 cos(100t) V a) Write vs(t) in phasor form b) In Figure 4a, what is Z₁? c) In Figure 4a, what is Zc? US(1) 10 0 50 mH 150 Συ(0) Figure 4a Z₁ 42(1) 1mF

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**Circuit Analysis Problem:**

Given \[ v_{S}(t) = 15 \cos (100t) \, V \]

### Questions:

a) Write \( v_{S}(t) \) in phasor form.

b) In Figure 4a, what is \( Z_L \)?

c) In Figure 4a, what is \( Z_C \)?

### Explanation of Figures:

**Figure 4a:**  
This figure represents an AC circuit consisting of:
- A voltage source \( v_{S}(t) \) with a voltage of \( 15 \cos(100t) \, V \).
- A series resistor of 10 ohms (Ω).
- An inductor of 50 millihenries (mH).
- A resistor of 15 ohms (Ω) in parallel with the combination of the 50 mH inductor.
- A capacitor of 1 millifarad (mF) in parallel with the resistor-inductor combination.

### Analyzing Figure 4a Components:

1. **Inductor (\( Z_L \)) Calculation:**
   - Inductor \( Z_L \) can be found using \( Z_L = j \omega L \), where \( \omega = 100 \, rad/s \) and \( L = 50 \, mH \).

2. **Capacitor (\( Z_C \)) Calculation:**
   - Capacitor \( Z_C \) can be found using \( Z_C = \dfrac{1}{j \omega C} \), where \( \omega = 100 \, rad/s \) and \( C = 1 \, mF \).
Transcribed Image Text:**Circuit Analysis Problem:** Given \[ v_{S}(t) = 15 \cos (100t) \, V \] ### Questions: a) Write \( v_{S}(t) \) in phasor form. b) In Figure 4a, what is \( Z_L \)? c) In Figure 4a, what is \( Z_C \)? ### Explanation of Figures: **Figure 4a:** This figure represents an AC circuit consisting of: - A voltage source \( v_{S}(t) \) with a voltage of \( 15 \cos(100t) \, V \). - A series resistor of 10 ohms (Ω). - An inductor of 50 millihenries (mH). - A resistor of 15 ohms (Ω) in parallel with the combination of the 50 mH inductor. - A capacitor of 1 millifarad (mF) in parallel with the resistor-inductor combination. ### Analyzing Figure 4a Components: 1. **Inductor (\( Z_L \)) Calculation:** - Inductor \( Z_L \) can be found using \( Z_L = j \omega L \), where \( \omega = 100 \, rad/s \) and \( L = 50 \, mH \). 2. **Capacitor (\( Z_C \)) Calculation:** - Capacitor \( Z_C \) can be found using \( Z_C = \dfrac{1}{j \omega C} \), where \( \omega = 100 \, rad/s \) and \( C = 1 \, mF \).
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