هن پروجيڪٽ ۾ اسان اوهانکي سيکارينداسون ته سيلن جي بدران سڪن مان ڪيئن بجلي ٺاهي سگهجي ٿي۔ پهرئين هڪ آرام سان لڪُئڊ چوسيندڙ گتو کڻي سڪن جي برابري ۾ انسيوليٽر ٺاهيو۔ انسوليٽر ڇا آهي اسان توهان کي ٻُڌائي چُڪا آهيون۔ We must prepare the barriers which will sit between the nickels and pennies in our pile. With a sharp knife, like an X-Acto knife, carefully cut some thin cardboard or similar material to the size of a penny. How many wafers you must prepare depends on how many coins you end up needing. This amount may vary due to a number of factors. If you end up needing too few to make your battery long enough for the flashlight, simply stack nickels without barriers on the end to fill the space. I chose the backing of an old notepad for my material. Select something thin, stiff, and absorbent. These wafers will hold our electrolyte and keep space between our metals to prevent short circuits which will reduce efficiency. Even blotter or filter paper works, but I've had better luck with cardboard.
اچو ته هاڻ ٻنهين ڌاتن جي سڪن جي وچ ۾ انسيوليٽر وجهي بيٽري ٺاهيو۔ What we will be creating is a voltaic pile, named for its inventor, Alessandro Volta in 1800. Our pile battery will consist of cells created from a US penny, cardboard, a US nickel, lemon juice, and salt (not shown in images) هتي اسان جنهن ايجاد ۾ هٿ پيا وجهون ان ايجاد جو نالو (وولٽيڪ پائل) آهي۔ هن جي موئجد ايلسنڊرو وولٽا هن کي 1800 ۾ ايجاد ڪيو هو، هن آمريڪا جي سڪي پينين ۽ ڪارڊ جي مدد سان ٺاهيو هو ۽ پو ان کي ليمي جي رس ۽ لوڻ ۾ٻوڙي پاور حاصل ڪيو هو۔ هي ڏسو هن اينگل سان به ڏسي ميٽر سان ڪنٽينيوٽي چيڪ ڪريو In this article, I will show you how to replace the typical 3 AAA battery pack in common cheap LED flashlights with pocket change to power the flashlight in a pinch. The battery created will even fit right inside where the normal battery pack should go! We've all seen these cheap little multi-LED flashlights at gas stations, convenience stores, dollar stores; you probably have one or more lying around. Let's get hacking!
انهن لا جيڪي ٿيوري سمجهڻ چاهين ٿا۔ The lemon juice is an acid which acts as a catalyst to enhance the reaction, to it we add sodium chloride (table salt) to reduce the internal resistance of the battery. We will cut thin cardboard pieces to the size of a penny, soak them in the acidic electrolyte, and sandwich them between nickels and pennies. It just so happens that the 3 AA battery packs common in cheap LED flashlights are just a tiny bit smaller than a US nickel, which is why I chose this arrangement. انهن لاِ جيڪي ڪيميسٽري جي انفارميشن وٺڻ چاهين ٿا۔ For those who want more chemistry information: A galvanic voltaic cell contains two metals which are dissimilar in electrical potential, separated by a thin barrier. To this cell we then add an electrolyte which causes the electrochemical reaction to occur. The metal contains cations, ions heavy with protons; cations react with water containing anions (electron heavy). While one metal causes the reduction of oxidation in the other, the reaction of anions and cations create an exchange of electrons - an electric current.
What you need: US Pennies (copper plated zinc - we want the copper here) US Nickels (25% nickel, 75% copper - we are utilizing the nickel content) Lemon juice or another acid such as strong acetic acid for cleaning coffee pots Table salt (sodium chloride) A sharp knife Thin cardboard or similar material Electrical tape (vinyl) Multimeter or another device to measure output voltage Note: the number of coins and spacers needed will vary depending on many factors, you will need to adjust them depending on what the output of your cell measures. Just remember they should be dissimilar and alternating. If you are not in the US, check to see what metals your coins are made out of and use two with a different electrical potential such as zinc and copper. Install the battery in your flashlight, making sure it isn't wet or leaking and taking care to install it with the correct polarity. Once installed your flashlight should function! Congratulations, you have replaced your flashlight battery pack with pocket change. Your friends won't believe you, so be sure to record it and show them. Refer back to the introduction for how and why this works. If you are having problems, make sure you don't have shorts in the cells (coins touching), your electrolyte is conductive and acidic or basic, and that the battery fits properly in the compartment. Check polarity, remember the cathode (-) is the penny side. If you look closely in one of the attached images, you'll see I forgot too.
