1. Initially, the resistor R is not connected to the circuit shown. When the resistor R is connected in parallel with the 12 K resistor, the voltage across the 12 K resistor, V_o , decreases by 2 volts. What is the value of R?
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2. Write a complete set of nodal equations which, if solved, would yield values for all of the node voltages. USE THE NODE VOLTAGES SHOWN. You DO NOT have to simplify or solve the equations, just write them down. However, the ONLY variables in your final set of equations should be the node voltage variables.
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3. Write a complete set of mesh equations which, if solved, would yield values for all of the mesh currents. USE THE MESH CURRENTS SHOWN. You DO NOT have to simplify or solve the equations, just write them down. However, the ONLY variables in your final set of equations should be the mesh current variables.
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4. The Thevenin equivalent resistance of the circuit below is 5 KW. Determine R.
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6. Determine the Thevenin equivalent of the circuit in the previous problem (without R_L). The circuit is shown again here for convenience. Be sure to label terminal A and B on your final diagram.
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