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

For the circuit shown,

• R₁ = 270 Ω
• R₂ = 150 Ω
• R₃ = 150 Ω
• R₄ = 100 Ω
• I_S1 = 55 mA
• I_S2 = 12 mA

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

Answer