the models that are created in this lab are examples of Voltage dividers. Voltage dividers are linear circuits set in series that take large amounts of voltage in, and reduces it into a smaller voltage. The drop is proportional to the value of the two resistors. These circuits will be useful in our class going forward so that we are able to direct the right amount current to different components.
Using the TinkerCad program I created the following circuit:
After adjusting the resistor to be 1000 ohms and measuring different outputs within the range of 1-10 volts, I get the data sheet below:
The resistance of the photo resistor from this model is 1332.66 ohms.
This is derived from Ohms Law: V = IR
the graph shown above can be represented in y = mx + b form and since the graphs y axis represents Voltage (V) and x axis represents current(I), The slope (m) is the resistance of the model.
(NOTE. "b" is ~ 0)
Using the LTspice program I created the following model:
The resistance of this model was set before hand as 1000 Ohms due to the limitaions of LTspice the second resistor in the model had to be set to a value before the program could run. The process for finding this value would be the same as before, with the slope of the line being the resistance.