Failed assignment

@Cheyee (8344)
Pakanbaru, Indonesia
November 10, 2020 2:03am CST
So my daughter and I try to do her assignment today. It's about alternative power source. We try lime, the LED is still off. We try potatoes, the result is still the same. I don't know what's the problem. Any idea?
11 people like this
6 responses
topffer
@topffer (42156)
• France
10 Nov 20
How many limes/potatoes have you used ? One is not enough to light a LED, you should connect at least 4 half-limes (2 limes) in series to get a small light with a basic LED needing 1.5 to 2 volts.
1 person likes this
Teti ariani
@Cheyee (8344)
• Pakanbaru, Indonesia
10 Nov 20
Really? I don't know that. I only use 1 lime tho. My daughter's friend tried it with 1 potato, she made it. I try with 2 potatoes, we failed.
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topffer
@topffer (42156)
• France
10 Nov 20
@Cheyee Your daughter's friend was lucky. Have you tried to connect your potatoes in series ? You put a nail in a side of each potato and a copper coin on the other side, then you connect the nail of potato 1 to the coin of potato 2, and the coin of potato 1 + the nail of potato 2 to the LED.
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Teti ariani
@Cheyee (8344)
• Pakanbaru, Indonesia
10 Nov 20
@topffer I did and failed
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Shavkat
@Shavkat (140118)
• Philippines
10 Nov 20
I am not good at it. Perhaps you can check it on Youtube. There are some videos that will show how.
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Shavkat
@Shavkat (140118)
• Philippines
11 Nov 20
@Cheyee I guess you need to redo the procedures.
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Teti ariani
@Cheyee (8344)
• Pakanbaru, Indonesia
11 Nov 20
@Shavkat it would be the 3rd time..
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Teti ariani
@Cheyee (8344)
• Pakanbaru, Indonesia
10 Nov 20
I did watch YouTube, and did exactly like they did. But failed
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ARIES1973
@ARIES1973 (11426)
• Legaspi, Philippines
10 Nov 20
If you already watched videos and followed the instructions, maybe you can check the connections.
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Teti ariani
@Cheyee (8344)
• Pakanbaru, Indonesia
10 Nov 20
Probably the cable was too thick. I will buy the thin one tomorrow.
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Simone
@Janet357 (75646)
•
10 Nov 20
if i'm not mistaken, we did this experiment when we were in high school. I just forgot. lol
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Teti ariani
@Cheyee (8344)
• Pakanbaru, Indonesia
10 Nov 20
It was century ago? Lol. I never do this, my dad said maybe the cable was too thick, so the power wasn't enough. I will try to change to the thin one tomorrow.
CarolDM
@CarolDM (203422)
• Nashville, Tennessee
11 Nov 20
I hope you can figure this out, sorry I have nothing to add.
Eric Tsuma
@erictsuma (9726)
• Mombasa, Kenya
10 Nov 20
I have no idea maybe you should watch toutoral videos on YouTube
1 person likes this
Teti ariani
@Cheyee (8344)
• Pakanbaru, Indonesia
10 Nov 20
I did, and most video showed it works.