Solderless Breadboards, Open Circuits, and Short Circuits

First Lab! Measuring resistances

As a preface:  I'm going to be using this blog as a place to take notes in addition to recording my lab work.  There will be explicit divisions where notes end and the lab begins. There will also be BOLD NUMBERS where mason has asked to see specific information in the lab section.  

1. We began by setting the ohmmeter to its lowest setting of 200 Ohms, and measuring the resistance between the two leads of our voltmeter.  We found the resistance to be 0.4 Ohms.

Proceeding to Step 1, we measured an additional 0.2 Ohms resistance between the leads and the wires, for a total of .6 ohms.

2. We then maxed out the ohm meter setting to 200 million ohms, and measured the resistance from two unrelated holes on the breadboard.  Two separate examples shown below.  We found a range of 7 million to 67 million ohms resistance.  This is more likely the resistance across Thor than the resistance across the board.

3. The resistance we measured across random holes not in the same row was also roughly infinite.

4.  Last, we measured the resistance between the rails.  We first measured with an extra wire, then removed the wire (not shown here), and found identical resistance of 0.9 ohms, ie short circuit.

Note to self: I need to buy fundamentals of electric circuits for $16 dollars on Amazon.
Update: it arrived March 20th!