Given:
- \(R_1 = 2.00 \, \Omega\)
- \(R_2 = 6.00 \, \Omega\)
- \(R_3 = 3.00 \, \Omega\)
- \(R_4 = 4.00 \, \Omega\)
Total external resistance, \(R_{\text{ext}}\) = \(2.00 \, \Omega + \frac{6.00 \, \Omega \times 4.00 \, \Omega}{6.00 \, \Omega + 4.00 \,
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