Day One - Breadboard, short and open circuit 2/28/17

Today we used the breadboard and DMMs to experience short and open circuit.

In the first experiment, we connect two holes in the same row of the breadboard.

what we get from the first experiment is that the resistance is very low because it is a closed short circuit, and we get 0.01 Ohms of resistance.

In the second experiment, we connect two holes of opposite sides of the channel of the breadboard.

Here is the setup. We get an infinite amount of resistance of this one because the rows are not connected, so it is an open circuit.

In the third experiment, we connect two arbitrary holes, and we get infinite resistance because again they are not connected, which means it is an open circuit.

In the fourth experiment, we connect two holes in rows on opposite side using the jumper. We get small resistance on this one because the jumper creates the connection between the two holes, which makes it a closed circuit with low resistance. 

We get 0.05 Ohms of resistance.

Summary: In this lesson, we learned how to distinguish open circuit from short circuit, and we have a detailed understanding of how the equipment work. For example, solderless breadboard is a convenient way to create a circuit, and voltmeter is an efficient method to measure the voltage.