For the circuit below, find Ix using superposition. 9 V 402 ww 3 A 6 Ω ww 802 ww Ix 4.5 V

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**Circuit Analysis Using Superposition**

In the given circuit, our goal is to find the current \( I_x \) through the 8-ohm resistor using the superposition theorem. The circuit includes the following components:

1. A voltage source of 9V.
2. A voltage source of 4.5V.
3. A current source of 3A.
4. Resistors with resistances of 4Ω, 6Ω, and 8Ω.

**Circuit Description:**

- The 9V voltage source is connected in series with a 4Ω resistor.
- Following the 4Ω resistor, a parallel connection includes a 3A current source and a 6Ω resistor.
- The parallel connection leads to the series connection of an 8Ω resistor and a 4.5V voltage source.
- The current \( I_x \) that we need to find flows through the 8Ω resistor, directed towards the 4.5V voltage source.

**Superposition Theorem Application:**

To apply the superposition theorem, we will consider each source independently while replacing all other voltage sources with short circuits and all other current sources with open circuits. The total current \( I_x \) will be the sum of the currents due to each independent source.

1. **Considering the 9V Voltage Source:**
   - Open circuit the 3A current source.
   - Short circuit the 4.5V voltage source.
   - Analyze the current \( I_x' \) through the 8Ω resistor.

2. **Considering the 4.5V Voltage Source:**
   - Open circuit the 3A current source.
   - Short circuit the 9V voltage source.
   - Analyze the current \( I_x'' \) through the 8Ω resistor.

3. **Considering the 3A Current Source:**
   - Short circuit both the 9V and 4.5V voltage sources.
   - Analyze the current \( I_x''' \) through the 8Ω resistor.

Finally, sum the currents from the three cases to find the total \( I_x \):

\[ I_x = I_x' + I_x'' + I_x''' \]

This method allows us to determine the effect of each individual source on the current through the specified resistor and thus find the total current \( I_x \) in the circuit.
Transcribed Image Text:**Circuit Analysis Using Superposition** In the given circuit, our goal is to find the current \( I_x \) through the 8-ohm resistor using the superposition theorem. The circuit includes the following components: 1. A voltage source of 9V. 2. A voltage source of 4.5V. 3. A current source of 3A. 4. Resistors with resistances of 4Ω, 6Ω, and 8Ω. **Circuit Description:** - The 9V voltage source is connected in series with a 4Ω resistor. - Following the 4Ω resistor, a parallel connection includes a 3A current source and a 6Ω resistor. - The parallel connection leads to the series connection of an 8Ω resistor and a 4.5V voltage source. - The current \( I_x \) that we need to find flows through the 8Ω resistor, directed towards the 4.5V voltage source. **Superposition Theorem Application:** To apply the superposition theorem, we will consider each source independently while replacing all other voltage sources with short circuits and all other current sources with open circuits. The total current \( I_x \) will be the sum of the currents due to each independent source. 1. **Considering the 9V Voltage Source:** - Open circuit the 3A current source. - Short circuit the 4.5V voltage source. - Analyze the current \( I_x' \) through the 8Ω resistor. 2. **Considering the 4.5V Voltage Source:** - Open circuit the 3A current source. - Short circuit the 9V voltage source. - Analyze the current \( I_x'' \) through the 8Ω resistor. 3. **Considering the 3A Current Source:** - Short circuit both the 9V and 4.5V voltage sources. - Analyze the current \( I_x''' \) through the 8Ω resistor. Finally, sum the currents from the three cases to find the total \( I_x \): \[ I_x = I_x' + I_x'' + I_x''' \] This method allows us to determine the effect of each individual source on the current through the specified resistor and thus find the total current \( I_x \) in the circuit.
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