Find and plot the current i (t) and the voltage vi (t) in the circuit shown. t = 0 12 0 iL(t) 10 v(+ vi(t) 20 2H 4 A 5v1(1)

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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**Circuit Analysis**

In this educational diagram, we are tasked to find and plot the current \( i_L(t) \) and the voltage \( v_1(t) \) in the given circuit. 

**Circuit Components:**
- A 10 V voltage source is connected on the left.
- A switch is shown in the open position with a label \( t = 0 \), indicating it closes at \( t = 0 \).
- A 4 A current source is present.
- The voltage across a component labeled \( v_1(t) \) is denoted by a plus and minus sign.
- A 12 Ω resistor is in series with the inductor.
- A 2 Ω resistor is parallel to a dependent voltage source.
- The dependent voltage source is given by \( 5v_1(t) \).
- A 2 H inductor is present in series at the end of the circuit.

**Objective:**
- **\( i_L(t) \):** The current through the inductor.
- **\( v_1(t) \):** The voltage across the central element marked in the circuit diagram.

The task requires the use of circuit analysis techniques to derive expressions for \( i_L(t) \) and \( v_1(t) \) post closing the switch at \( t = 0 \).

This exercise involves concepts such as:
- Ohm's and Kirchhoff’s Laws.
- Transient analysis.
- Dependent sources and their influence in circuit behavior.
- Inductors and their property in time-varying circuits.
Transcribed Image Text:**Circuit Analysis** In this educational diagram, we are tasked to find and plot the current \( i_L(t) \) and the voltage \( v_1(t) \) in the given circuit. **Circuit Components:** - A 10 V voltage source is connected on the left. - A switch is shown in the open position with a label \( t = 0 \), indicating it closes at \( t = 0 \). - A 4 A current source is present. - The voltage across a component labeled \( v_1(t) \) is denoted by a plus and minus sign. - A 12 Ω resistor is in series with the inductor. - A 2 Ω resistor is parallel to a dependent voltage source. - The dependent voltage source is given by \( 5v_1(t) \). - A 2 H inductor is present in series at the end of the circuit. **Objective:** - **\( i_L(t) \):** The current through the inductor. - **\( v_1(t) \):** The voltage across the central element marked in the circuit diagram. The task requires the use of circuit analysis techniques to derive expressions for \( i_L(t) \) and \( v_1(t) \) post closing the switch at \( t = 0 \). This exercise involves concepts such as: - Ohm's and Kirchhoff’s Laws. - Transient analysis. - Dependent sources and their influence in circuit behavior. - Inductors and their property in time-varying circuits.
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