Op amp practice problems
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Read the op-amp class notes.

For the circuit shown,

• R₁ = 1.5 kΩ
• R₂ = 8.2 kΩ
• R₃ = 6.8 kΩ
• R₄ = 37.2 kΩ
• v_a = 8 V
• v_b = 12 V

What is the output voltage v_o?

Answer