Wednesday, February 25, 2015

Day 1

 Solderless breadboards, Open- circuits and Short-circuits
In the lab, we used the DMM as an ohmmeter to check the connectivity of different nodes' on a breadboard.
1.  Using your DMM as an ohmmeter, connect the leads of the DMM to two holes in the same row on breadboard. And we got the resistance is 4.6Ω, so it is a short circuit

2. Check the resistance between two rows of holes on opposite side of the central channel of the breadboard. And in the finally, we got the resistance is "1", so it is a open circuit


3. Check the resistance between two arbitrary holes(not in the same row) of the breadboard. And in the finally, we got the resistance is "1", so it is a open circuit.


4. Using a jumper wire to connect two different rows on the breadboard. And we got the resistance is 1.7Ω, so it is a short circuit.


5. Result for lab
In part a,  I record the 4.6 ohms  from DMM, so that it's a short circuit.
In part  b,  I record 1 on the screen that means infinity ohms, and it's a open circuit.
In part  c,  I record 1 on the screen that means infinity ohms, and it's a open circuit.
In part  d,   I record the 1.7 ohms  from DMM, so that it's a short circuit.