# Project 0-Software Tools

### ECLO-1: Voltage Dividers

A voltage divider has the function of producing an output voltage at a certain point in the circuit that is lower than the input voltage. The circuits that were made in TinkerCad and LTspice are both examples of voltage divider circuits. Using a voltage divider in these circuits lowers the voltage magnitude to a level that can be measured using a multimeter, which is what was used to measure the voltage for the data in this experiment.

The equations used to calculate the output voltage of a voltage divider circuit is shown below.

$V = I*R$

$I = V*{in}/(R*{1}+ R_{2})$

$R = R*{1}+R*{2}$

$I*{1}=I*{2}$

These equations can be plugged into this final equation:

$V*{out}=(V*{in}/(R*{1}+R*{2}))*R_{2}$

The information that was provided in the lab was the input and output voltage, the resistance of the provided resistor, and the current in the circuit. This information can be plugged into the final equation above in order to obtain the resistance of the photoresistor in the circuit.

The data and graphs provided below are from TinkerCad and LTspice, respectively.