AlexCrafter

No, thats not it. I tried the different lengths in succession 3 times; 1, 2, 3, 1, 2, 3, 1, 2, 3. And the results for each try for each length matched. Furthermore, it didn't drop, at first it increased, as the resistance did, then it dropped.

Now, I'm not quite sure where this goes but its my homework that led me to the question I have now. The original task was to do an experiment to show the relationship between amps and resistance, the resistance was made using varying lengths of wire. Now the original task went well, I showed the relationship wrote a conclusion etc. but, I measured the voltage as well and it seems to change with the different lengths of resistance wire. Now, I used the same battery each time and tried each length multiple times but the voltage has different value for each length. I would assume that the voltage would stay the same. The next day I did it again and the voltage did stay the same, I used a different battery that time. What is causing this? Does the first battery have a built in feature to change its voltage depending on the resistance or am I imagining things? Any help is appreciated. This is not my homework only a question it brought up.