March 19

Thevenin Example using EveryCircuit

Thevenin Equivalent
In this lab, we learned how to use Thevenin Equivalent to simplify a complex circuit to a simple circuit with one Voltage supply and one resistor.

After calculation, we found Rth = 7.2kohm and Vth = 0.4579V for the terminal a and b.

This is how the circuit was connected.

 We chose an 1kohm resistor and a 10kohm resistor as RL.
V1k = 56mV and V10k = 269.2mV.

The actual value of Vth = 0.460V and Rth = 7.17kohm.

We used a potentiometer as RL.

This is how Rl(kohm)VS. V(mV) looks like.
And Rl VS. Power is linear with a constant slope.

The Thevenin equivalent circuit helps simplify a complex circuit into a simple circuit so we don't have to recalculate the whole circuit when only one circuit element is changed.