Two terminals a and b are attached to an unknown circuit. when a 20 ohm resistor...

Question

Question

Two terminals a and b are attached to an unknown circuit. when a 20 ohm resistor is connected between a and b, V=15 V across the resistor. When 20 ohm resistor is removed and a 40 ohm resistor is attached between 2 terminals, V=24 across the resistor.
1. What is thevenin equivalent circuit at terminals a and b for unknown circuit?
2. What is max power the circuit can deliver to a load resistor and what is the value of the load resistor for max power?

Hint: draw thevenin equivalent circuit attached to a and b and find what values of Vth and Rth are needed to satisfy both conditions above.

Answer 1

Answer #1

Answer 2

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