1. For the system shown below: 2 1 R, R2 es C (a) write the state equations of motion for the system using energy storage vari- ables as state variables. (b) draw a block diagram representation of the system and reduce the block dia- gram to find the transfer function T(s) = between the input e,(t) and the output e2g(t), and E,(s) (c) identify the effective mass, damping and stiffness of the second order system. 3.

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### Example Problem - Electrical Circuit Analysis

**Problem Statement:**

For the system shown below:

![Circuit Diagram](attachment needed)

1. **Circuit Explanation:**

   The circuit consists of:
   - A voltage source \( e_s \).
   - Two resistors \( R_1 \) and \( R_2 \).
   - A capacitor \( C \).
   - An inductor \( L \).
   
   The currents \( i_1 \), \( i_2 \), and \( i_3 \) flow through the respective components, with the circuit being grounded at point \( g \).

2. **Tasks:**

   (a) Write the state equations of motion for the system using energy storage variables as state variables.

   (b) Draw a block diagram representation of the system and reduce the block diagram to find the transfer function \( T(s) = \frac{E_{2g}(s)}{E_s(s)} \) between the input \( e_s(t) \) and the output \( e_{2g}(t) \).

   (c) Identify the effective mass, damping, and stiffness of the second-order system. 

**Graph/Diagram Explanation:**

- **Resistors** \( R_1 \) and \( R_2 \): Linear elements that offer resistance to the flow of current.
- **Capacitor** \( C \): Stores energy in an electric field.
- **Inductor** \( L \): Stores energy in a magnetic field.
- **Voltage Source** \( e_s \): Provides electrical energy.

This system illustrates the interaction of resistive, capacitive, and inductive components, forming a foundation for analyzing electrical networks and identifying system dynamics through state equations and transfer functions.
Transcribed Image Text:### Example Problem - Electrical Circuit Analysis **Problem Statement:** For the system shown below: ![Circuit Diagram](attachment needed) 1. **Circuit Explanation:** The circuit consists of: - A voltage source \( e_s \). - Two resistors \( R_1 \) and \( R_2 \). - A capacitor \( C \). - An inductor \( L \). The currents \( i_1 \), \( i_2 \), and \( i_3 \) flow through the respective components, with the circuit being grounded at point \( g \). 2. **Tasks:** (a) Write the state equations of motion for the system using energy storage variables as state variables. (b) Draw a block diagram representation of the system and reduce the block diagram to find the transfer function \( T(s) = \frac{E_{2g}(s)}{E_s(s)} \) between the input \( e_s(t) \) and the output \( e_{2g}(t) \). (c) Identify the effective mass, damping, and stiffness of the second-order system. **Graph/Diagram Explanation:** - **Resistors** \( R_1 \) and \( R_2 \): Linear elements that offer resistance to the flow of current. - **Capacitor** \( C \): Stores energy in an electric field. - **Inductor** \( L \): Stores energy in a magnetic field. - **Voltage Source** \( e_s \): Provides electrical energy. This system illustrates the interaction of resistive, capacitive, and inductive components, forming a foundation for analyzing electrical networks and identifying system dynamics through state equations and transfer functions.
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