Using a Mulitmeter

 January 6, 2016
In this lab we learned about continuity, resistance and voltage measurement. First we tested the continuity on the PCB that we added components to in the first lab by using the probe leads to touch each of the pads on the back of the board. We then tested the voltage of a 9V battery by touching the positive and negative spots on the battery as well as testing the voltage of a wall outlet. In doing this I also learned the difference between Alternating Current(AC) and Direct Current(DC), and learned how each is used and where to find each current. For example AC comes out a wall outlet and is very strong, whereas DC is used for phones and is less powerful than AC. I also learned that the box on a laptop cable is what converts the energy that comes out of the wall from AC to DC for your computer. Lastly we tested resistance with a 1k ohm resistor and the resistance of a potentiometer.