## Solderless Breadboards and Serial and Parallel Resistors

In this lab, you are to characterize a breadboard as which holes are connected and which ones are not. To do that, you are to use the continuity function of the digital multimeter and probe through using two wires, each inserted in a hole and if the buzzer sounds, they are connected. As a finished product, you are to create a drawing of the breadboard you have and point out all the connection.

For the next part of the lab, you will create series and parallel combination of the resistors provided in class. The followings are the formulas to use and figures of how they should look like:

Serial combo: R = R1 + R2 + ...

Figure 1 - Series Resistors

Parallel combo: 1/R = 1/R1 + 1/R2 + ...

Figure 2 - Parallel Resistors

You could use the resistor color codes to find out the theoretical values of the resistors and once you have the measured values, you are to use the following formula to find the error percentage.

% Error = (| Theoretical Value – Measured Value| / (Theoretical Value)) * 100%

For additional practice, next you apply a 12V power (from Agilent E3631A) to the input of both combinations (Series and Parallel Resistors) and measure the voltages across each resistor using a multimeter (Fluke 179) and record your results. Here are the figures of how the connections should be made:

Figure 3 - Series Resistors with Power Supply

Figure 4 - Parallel Resistors with Power Supply