Water Bottle Capacitor

Introduction: Water Bottle Capacitor

This capacitor probably won't be the strongest, just saying.

So, here's what you need:

1x empty water bottle


Copper Wire

Tin foil

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Step 1:

Start by filling the water bottle 70-80% full with the vinegar.

Step 2:

Next, poke a hole in the top. You may use a nail and a hammer.

Step 3:

Put the wire through the hole, so it goes well into the vinegar.

Step 4:

Bend the top of the wire, so it doesn't fall through.

Step 5:

Wrap a good amount of tin foil around the outside of the bottle, and tape it in place.

Step 6:

Connect one alligator clip the some of the exposed tin foil.

Step 7:

Connect the other one to the exposed wire

Step 8:

Connect the ends of the clips to so one goes to each of the leads of a 9v power supply. Take note of which clip goes to positive!

Step 9:

Leave it on for an hour.

Step 10:

Now it's ready! It should look like the pictures above. Good work :)

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    2 Discussions


    5 years ago

    Any rough estimate of the capacity in pF, mF or F? Probably better to just buy a bottle of vinegar for 89 cents and use that. Does glass work better than plastic?


    Reply 5 years ago on Introduction

    no idea about it's capacity. Plastic bottles should work better, because the plastic is usually thinner than the glass. Buying a vinegar bottle could work better.