Mesh current practice problems
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Read the mesh-current method class notes.

For the circuit shown,

• R₁ = 1 kΩ
• R₂ = 2.2 kΩ
• R₃ = 8.2 kΩ
• R₄ = 5.6 kΩ
• I_S1 = 4.8 mA
• I_S2 = 1.3 mA

Use the mesh-current method to find the indicated current i_a.

Answer