Lab 8: Every Circuit & Thevenin's Therem

Teaching how to using Every Circui


How to use the Thevenin's Therem to solved for Rt and Vth. 

Using every circuit we solved for Rt and Vth. 

Pre-lab: we got Rth= 7.2K ohm, and Vth=0.4179V. compare with  EveryCircuit to see if we get the right answer.

useing the EQ to solute I=54.4uA

Meatured the Rth=7.10K

Meatured the V(4.7K)=0.17V


Meatured the V(1k)=0.54V

we got % different of V(1K) = 1.9%,  and % different of V(4.7K)=0%

Connect the potentiometer between the terminals a-b.

measurment for the load voltage as a function of potentiometer resitance.

We now can plot a graph for power vs. resistance. We can see that the power increases as the load resistance increases until it reaches a maximum and then starts to fall a bit. The maximum is 8.02 mW, which occurs when our load resistance is 5.24 kΩ. However, This does not corresponds closely to our Thevenin resistance of 7.20 kΩ.