Currents From the Kitchen Part 2

For this experiment I was working Mika, Steven and Gabriel. We brought 2 potato’s (1 large, 1 small) and an apple. First we used the voltmeter to measure all of the different fruits and vegetables, then we tried to light a bulb with one of them.

Observations:

  • We got the most voltage when we put the copper and zinc closer together.
  • Most of the fruits and vegetables had around 0.2 volts.
  • It still created voltage when we put the zinc in one fruit and the copper in the other and had them touch

Results:

  • apple – 0.3 volts
  • small potato- 0.1 volts
  • large potato – 0.2 volts
  • onion – 0.2 volts
  • banana – 0.5 volts
  • orange – 0.3 volts

Explanation:

While we did create a little bit of voltage, we did not create very much. Our light bulb didn’t glow however, we knew there was voltage because we could see it on the voltmeter. I think our bulb didn’t glow because we were using fruits and vegetables which will not create enough charge and the bulb needs a higher amount of charge. One way I would do this differently is by combining different fruits and trying to light the bulb that way.