Physics Van 3-site Navigational Menu

Physics Van Navigational Menu

Q & A: Why won’t my lemon battery work?

Learn more physics!

Most recent answer: 05/16/2013
Q:
My daughter and I are doing the lemon battery experiment for a science prodject and are currently having trouble making it work.We have hooked up as many as nine lemons together both in series and paralell and every combination in between and still can’t make the experiment work. Here’s what we did:using copper wire(14 guage)and both paper clips and zinc coated screws as electrodes we inserted them two centimeters apart in each lemon.Hooking the lemons together we were able to get 3.6volts on a voltometer.We purchased a number of items from "Radio Shack"whick ranged from lights(1.5v,2.0v,2.5v)small dc motor(2.5v)and a buzzer(3.0v).None of the items would work.We tried adding three sets of three lemon cells together thinking this would provivide more current.We got a reading of 1.8v on the voltometer but still could not get any of the items to work,not even the 1.5v light.We connected the electrodes together with wire connectors(alligator clip at each end,store bought).Could you please tell me what we are doing wrong.What else could we use for electrodes? What are common items that are made from zinc or magnesium that could be used?Please reply A.S.A.P. as the prodject is due very soon.
internet drug coupons open prescription coupon
internet drug coupons coupons for prescription medications prescription coupon
married men cheat with men why husbands cheat wifes cheat
types of abortions read what happens when you get an abortion
walgreens coupons deals free grocery coupons walgreens photo print coupons
married cheaters site dating for married men
discount card prescription damske.com print cvs
imitrex 50mg thyroxine flagyl 200mg
free viagra samples coupon gallaghermalpractice.com viagra 2016 coupon
new prescription coupon discount drug coupons prescription coupon card
coupons for prescriptions new prescription coupons prescription drugs discount cards
coupons prescriptions blog.brunothalmann.com manufacturer coupons for prescription drugs
acheter viagra pas http://acheterviagraenfrance.com/pas acheter viagra pas
cialis manufacturer coupon link prescription drug coupons
prescription drug coupons prescription discount coupon drug coupon
champix alkohol mdwguide.com champix
diflucan 150 gruene-kehl.de diflucan sirup
ibuprofen rapid tracyawheeler.com ibuprofen
sildenafil pfizer link sildenafil sandoz
proscar vs propecia for hair loss proscar proscar pris
cialis cialis cialis walgreen coupon
lasix injetavel lasix lasix
allods online cwblog.centralworld.co.th allo allo

- John Kendrick
Edmonton,AB,Canada
A:
John -

In order power a lightbulb, it needs to be provided with both voltage and current. As you've already checked the voltage across the lemons by using a voltmeter, you know that your setup is correct. The important thing now is that you need to get more current. (You may recall that power = voltage * current, so you'll need to increase the current in order to get enough Watts of power to light the bulb.)

You've got the right idea by using cells of lemon batteries together. By connecting more of these cells in parallel, you can increase the current. (By using more lemons in series in each cell, you can increase the voltage.) In order to check how much current you're getting, you'll need to use an ammeter. Your voltmeter probably has a setting which measures milliamps, and this will work for measuring current as well.

If it turns out that you're not getting enough current then you'll probably need to use even more lemons. The only other thing that may help beyond that is if you squish the lemons first so that they're really juicy inside. This might help to increase the current that you get from each one.

If the ammeter shows that you are getting enough current to run your lightbulb, then the problem is most likely to be in the lightbulb, not the battery. Make sure that you're attaching the wires to the lightbulb correctly, and check that the bulb isn't dead using a regular battery. If the lightbulb still won't work, you should be able to power a small digital watch using several lemons.

If you still can't get it to work, some other experiments along the same line of thought include touching your tongue to a wire attached to only one lemon battery. Because the lemon produces such a small current, this won't hurt you, but you should be able to feel a tingle. Also, you should be able to hear a crackle inside the lemon if you put your ear up to it. (I've never actually tried this myself, but I've heard that it does work.)

Beyond that, I really don't know what to say. Good luck!

-Tamara
cheater click wifes who cheat
the best android phone mealmixer.com phone tracking apps
types of abortions site what happens when you get an abortion
types of abortions site what happens when you get an abortion
walgreens coupons deals blog.mrwade.co.uk walgreens photo print coupons
married cheaters site dating for married men
buy sildenafil 100mg viagra without a doctor prescription viagra 100 mg
diprolene go furosemide 40mg
priligy 30mg go cialis 40mg
ventolin 2mg thyroxine 25mcg deltasone 40mg
free online coupons onlineseoanalyzer.com new prescription coupons
acheter viagra pas acheter viagra pas acheter viagra pas
prescription drug coupons cialis coupons from lilly drug coupon
coupons for prescriptions open drug prescription card
lilly cialis coupon click coupons prescriptions
discount prescription drug cards open prescription discounts cards
venlafaxine gewichtstoename read venlafaxine fk
augmentin générique arbot.cz augmentin sirop
fusidinezuur kopen fusidinezuur kopen fusidic acid
allods online cwblog.centralworld.co.th allo allo
motilium enceinte motilium notice motilium et grossesse
singulair 4 mg granulat scottdangelo.com singulair patient information
how expensive is an abortion do abortions hurt abortion clinics dallas tx
how expensive is an abortion abortion clinic abortion clinics dallas tx
vivitrol alcohol what is vivitrol shot narcan challenge

(published on 10/22/2007)

Follow-Up #1: vegie amps

Q:
I also did this experiment but with potatos too. i found the potatos did not produce enough amperage(DCma). i connected to a AA battery to see the difference and the batteries amperage was off the scale as where the potatos was very small. Although if you did want enough amperage, larger citrus fruits help and more fruit can increase it enough to power a light bulb
the best android phone link phone tracking apps
the best android phone link phone tracking apps
free prescription cards nwwebdesigns.net walgreens prints coupon codes
diprolene kamagra furosemide 40mg
priligy 30mg click cialis 40mg
coupons rx prostudiousa.com www.januvia.com coupons
levitra pill imitrex 25mg tadalafil pill
finasteride sigridw.com cialis 80mg
free online coupons pharmacy coupon new prescription coupons
imitrex 50mg thepoliticalsword.com flagyl 200mg
viagra coupon card blog.brunothalmann.com viagra free coupon
viagra coupons free softballspa.com drug coupons
discount prescriptions coupons pet prescription discount card internet drug coupons
can i take escitalopram in the morning link can i take escitalopram in the morning
acheter viagra pas acheter viagra pas acheter viagra pas
cialis price online lipseysguns.com cialis price history
prescription drug coupons prescription discount coupon drug coupon
drug discount coupons blog.suntekusa.com discount coupons for prescriptions
naproxennatrium site naproxen migraine
augmentin générique read augmentin sirop
ibuprofen rapid ibuprofen spc ibuprofen
proscar vs propecia for hair loss proscar pris proscar pris
fluvoxamine (luvox) open fluvoxamina bula
nurofen cold and flu dosage internetsellout.com nurofen plus dosage
prescriptions coupons coupons for prescriptions drug prescription card
how expensive is an abortion link abortion clinics dallas tx
vivitrol alcohol what is vivitrol shot narcan challenge

- river (age 16)
new mexico
A:
Thanks.

Mike W.
why people cheat infidelity signs how many people cheat
cheater click wifes who cheat
best android spy apps to spy on phones how to spy on an android phone
married cheaters site dating for married men
diprolene kamagra furosemide 40mg
prescriptions coupons markthrice.com discount coupon for viagra
viagra coupon card blog.brunothalmann.com viagra free coupon
coupon for viagra modelosguayaquil.com viagra discount coupons online
lisinopril and bisoprolol lisinopril and bisoprolol lisinopril and bisoprolol
viagra bestellen online viagra pillen kruidvat pillen kopen
lilly cialis coupon click coupons prescriptions
champix alkohol go champix
seroquel 25 mg read seroquel debljanje
allods online cwblog.centralworld.co.th allo allo
prescriptions coupons cialis coupon drug prescription card
how expensive is an abortion abortion clinic abortion clinics dallas tx

(published on 05/16/2013)

Follow-up on this answer.