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Find this Pin and more on science fair project lemon battery by ..

Yes, so with only TEN LEMONSwired in parallel, maybe we could cause the special hyper-sensitive lightbulb to blink on for a second or two before going dark.

 Although the process starts and electricity is being produced, the light bulb may still be off.

You can even use this trick to let your lemon battery runa low-voltage buzzer or turn a small motor (look for "solar cellmotors" from various mail order suppliers or Radio Shack.) As with the bulb, you mustcharge up the capacitor for many minutes, then use it to run your bulb ormotor for a few seconds.
It's not an ideal experiment, and it's hard to explain how work.

What is the hypothesis for a lemon battery science project?

Another is the "lemon battery" or "potato battery" used to run a flashlight bulb.

At best we can use several lemons to
If a science book contains the lemon battery bulb-lightning experiment, it means that the author never performed the experiment to see if it works.

If you don't have that special Radio Shack bulb, then you'll need more than one lemon-juice jar hooked in series to make the 1.5 volts needed by a standard flashlight bulb.

My Experiments and Results: Lemon Battery

the lemon's electrical output is far too feeble to light up astandard flashlight bulb.

I have connected a volt meter to our single cell lemon battery. The meter tells us this lemon battery is creating a voltage of 0.906 volts. Unfortunately this battery will not produce enough current (flowing electrons) to light a bulb.

To solve this problem we can combine battery cells to create higher voltages. Building more lemon batteries and connecting them with a metal wire from "+" to "-" adds the voltage from each cell.

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Lemon powered light bulb - SlideShare

Creating a battery from a lemon is a common project in many science text books. Successfully creating one of these devices is not easy. Batteries consist of two different metals suspended in an acidic solution. Copper and Zinc work well as the metals and the citric acid content of a lemon will provide the acidic solution. Batteries like this will not be able to run a motor or energize most light bulbs. It is possible to produce a dim glow from an LED.

Lemon battery project hypothesis - Certified Pubic …

The two lemon batteries above, combine to produce a voltage of 1.788 volts. This combination still does not create enough current to light a small bulb. Note the red wire connecting the batteries is joined from "+" (penny) to "-" (galvanized nail).

Lemon Battery - Incredible Science

Since the produced electricity is so little, you have little chance on turning on a light bulb, but you can definitely show the produced voltage using a multi-meter and you can use that electricity to turn on a digital clock or small digital calculator, because these two need much less electricity than a bulb.

Investigate the probability of using other fruits and vegetables to make electricity.

Why Do Fruits Produce Electricity

We would use a shinier penny to see if it had a different affect.
We got our information from:
Lipper, Aurora.“Fruit Batteries Science Fair Project”.

Science Fair Project Ideas, Answers, & Tools

(If not, then remove the bulb and try connecting your lemon cellto the capacitor for 15 minutes to make sure the capacitor gathers enoughenergy.) The capacitor slowly collects electrical energy from the lemonbattery, then it dumps that energy into the flashlight bulb over a veryshort time.

BAD PHYSICS: Misconceptions spread by K-6 Grade …

How about some electrostatics? Try this:

- Connect a metal needle to a Connect a small metal plate to ground. Put a microamp meter in series with the plate's ground wire.(Ground the other power supply lead, of course.)
- Power up the HV and aim the needle at the metal plate from many inches distance. The microamp meter should indicate a large reading. "Electric Ion Wind" is flowing from the needle, to the plate, and through the meter to ground.
- Now blow some crosswind through the gap between the needle and the metal plate. This should deflect the "electric wind" and make the meter reading fall to zero, right? Instead, NOTHING HAPPENS. The microamperes reading remains the same.
- Uhhhh... OK now, maybe the ion flow is bending around to hit the grounded plate from the side. Following the e-field lines? So lets put a wide metal ring around the plate and connect it directly to ground (no meter.) If the electric wind gets deflected, it should miss the meter and flow directly into ground. Power up the needle, get some microamps on the meter, now blow some wind. AGAIN NOTHING HAPPENS! The microamp reading stays high. The ion path doesn't deflect!
- Really blast some wind across the path. Use a plastic straw, and hit the needle tip with some series crosswind. Nope, still the same. Maybe the microamps fluctuates just a bit, but essentially remains large. The ion paths won't move. They blast right through any crosswind I can throw at it.
- RATS! This means that I can't easily build an air-blast VandeGraaff generator using a HV supply, needles, and a small battery-powered fan. It also means I can't make a wind-speed sensor with no moving parts which measures the microamps difference between electric wind being received by two adjacent collector plates facing a single needle. A high-volt wind-direction indicator won't work; it just ignores the wind.
- SPECULATION: if the electric wind was made up of many slow ions, then evena gentle breeze would push it away from the receiving plate. Therefore, it mustbe composed of few/fast ions. It makes no sense! Ions should collide with neutral air molecules and experience large drag. Maybe the ion flow pattern self-organizes into very jets having narrow cores made of fast-moving ions. Thinfilaments have a high RE (Reynolds Number), which allows them to move veryfast but without turbulent breakdown. It's like the fast thin laminarstream of smoke above a cigarette. I wanted to make a hailstorm of ions, but instead I get a "death ray" beam far narrower than a human hair. Just like Tesla said.
- I lied about making too many videos. I couldn't resist doing about gas-filled capacitors that magically pump themselves down to vacuum.

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