Hello everyone. Recently, I started working on the Electrolyte challenge for my science fair project. I hooked everything up, made sure my battery was full, fuse not blown, etc. But I found two problems. My first problem was the fact that my multimeter didn't have DCA, ACV, etc. settings. It had these types of settings:
What kind of setting should I use?
So trying to guess, I used the V with the lines and dashed lines on 200 to test my liquids. When I put it in gatorade, i got something like 8.4. But when I put it in tap water, it was 8.4, salt water, 8.4 and etc. What am I doing wrong?
Also, Note: i used the COM and VΩ
This here is my finished product...
Please help. I have try to fix it many times but I have had no success