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Determine the current in the 7.0-Ω resistor for the circuit shown in the figure. Assume that the batteries are ideal and that all numbers are accurate to two significant figures .

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A) 0.28 A B) 1.6A C, 2.1A D) 1.3 A

♦ Relevant knowledge

If you’re dealing with planar circuits that have voltage sources interspersed around KVL-based techniques like Nodal Analysis, Mesh Analysis as well as Superposition Theorem are the best method of calculating the currents, since we are unable to reduce the circuit to the equivalent resistivity. In general, Mesh Analysis is faster than Superposition theorem due to the fact that we need to calculate the equivalent resistances of Superposition theorem.

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## 1 Answer