Thursday, January 12, 2012

Intro to using a breadboard, multimeter

Using a Breadboard

Here is the breadboard that i used to connect a power supply , a 1.0K ohm resistor, and a LED.




Using a Multimeter

In this experiment I used a multimeter , set to DC, to determine the voltage of a D-cell, and 9.6V battery. I did this by placing one probe on the positive and the other probe at the negative end of the battery. The reading of the D-cell battery was 1.608V, and the 9.6V battery was 7.87V








In this step I used the multimeter to find the voltage of a unregulated adapter, and also when a 100 ohm resistor runs across the two terminals. The values for the adapter were 0.115V and with the resistor connected it was 4mV




I also used a multimeter to test the power supply I made during first class meeting. Unfortunately I have no data or pics for this step I guess I skipped passed it.




In the final multimeter step I tested a 9V AC adapter. Again i did this by placing the positive probe on the positive part and the negative probe on the negative part of the adapter. The values I obtained were 9.48V while it stated 9V. In this step I also forgot to take a photo of the experiment. 



Resistance testing

 In this experiment I  tested numerous types of resistors. I set the multimeter to ohms and took the probes and placed them at opposite ends of the resistor. Here is a picture of the the process that took place. The recorded values are in the handout. 



Testing a potentiometer

In the potentiometer experiment I found the max and lowest resistance of the potentiometer.
By placing the probes onto the pins of the device I was able to obtain a low reading of 10.3ohms and a max reading of 8.25Kohms. When switching to the adjacent pins the readings would exchange with one another. My potentiometer tested linear.



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