Current 2 Ohm
1. **State the problem:** We need to find the current through the 2-Ω resistor between points a and b in the given circuit using the superposition principle.
2. **Identify sources:** The circuit has two current sources: 24 A on the left branch and 6 A on the right branch.
3. **Apply superposition principle:** Analyze the circuit twice, each time considering only one current source active and the other replaced by an open circuit (since they are current sources).
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**Case 1: Only 24 A source active**
- The 6 A source is replaced by an open circuit.
- The 24 A current flows through the left branch with 4 Ω resistor.
- The right branch is open, so no current flows there.
- The 2 Ω resistor is connected between points a and b on the top branch.
Since the right branch is open, the current through the 2 Ω resistor is zero in this case.
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**Case 2: Only 6 A source active**
- The 24 A source is replaced by an open circuit.
- The 6 A current flows through the right branch with 6 Ω resistor.
- The left branch is open, so no current flows there.
Again, the 2 Ω resistor is connected between points a and b on the top branch.
Since the left branch is open, the current through the 2 Ω resistor is zero in this case as well.
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4. **Combine results:** The total current through the 2 Ω resistor is the sum of currents from both cases.
$$I_{2\Omega} = 0 + 0 = 0\,\text{A}$$
5. **Conclusion:** The current through the 2 Ω resistor is zero amperes.
This means no current flows through the 2 Ω resistor under the given conditions using superposition.