⭐⭐⭐⭐⭐ Lightbulb Experiment

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Lightbulb Experiment



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To make a light bulb, start by connecting 5 6-volt batteries end to end using electrical tape. Then, take a piece of copper wire and hook one end onto the positive end of the battery chain and the other end onto a piece of graphite pencil lead. Next, take a second piece of copper wire and attach one end to the graphite. Once the graphite is attached to both copper wires, place a jar over it. Finally, turn on your light bulb by touching the loose end of the second piece of copper wire to the negative end of the battery chain.

To learn how to make a light bulb using iron filaments, scroll down! Did this summary help you? Yes No. Log in Social login does not work in incognito and private browsers. Please log in with your username or email to continue. No account yet? Create an account. Edit this Article. We use cookies to make wikiHow great. By using our site, you agree to our cookie policy. Cookie Settings. Learn why people trust wikiHow. Download Article Explore this Article methods. Tips and Warnings. Things You'll Need. Related Articles. Article Summary. Method 1. Round up the supplies needed for you bulb. Everything here is easy to round up at a local hardware store, if you don't already have it all at home. You'll need. Two strands of copper wire roughly feet, each One clear glass jar Small glass jar for smaller bulb Five or more batteries Four crocodile snips.

Find or buy some mechanical pencil lead. You should use the kind you get in mechanical pencils -- the thin, solo pieces of graphite that you can usually buy in packs. The thinner, the better -- try something like. Graphite is an electrical conductor, making it a good filament for homemade light bulbs. Hook the copper wires up to the electrical clips. The ends of each wire should have a clip on it. If you don't have clips, you can still make a light-bulb. To do so, curl each end of the wire into a little round hook.

If you are making the hooks yourself, make them big enough to fit over the end of the battery. Attach your batteries together in series. This simply means you tape them together, end to end, so that they all work together to provide power. Make sure you line them up positive end to negative end. Then use electrical tape to secure all the batteries together into a long rod. Wrap the tape tightly enough around the batteries so that they hold together. You may need to overlap the tape a few times. You must arrange the batteries so that there is a positive node on one end, and negative on the other. Clamp a copper wire to one end of the batteries. Usually, you'll have a wire with red clips and one with black. Hook one end of the red clips up to the positive end of the batteries, but leave the other clip off for now.

If you hook everything up, you'll actually be turning the light bulb on before you're ready. You could get burned if you're not careful You can reverse the red and black if you want-- you just need different wires on each end. Remember you only want to hook up one wire right now. Stand up the two remaining clips, then clamp the graphite between them. Think of making an H-shape, where the two clips are the sides and the graphite is the horizontal line in the middle.

Use some tape, glue, or modeling clay to help stick the clips face up. Put the glass jar on top of the clips and graphite. This isn't strictly necessary, as the graphite would still light even without the jar. But the process creates smoke, and the graphite can shatter. Moreover, having an actual "bulb" helps create a more even light. The size of the jar does not matter, but the jar should be clean. If the jar has a label, it would be a good idea to remove it; this will make it easier to see the light. Attach the final wire to the other end of the batteries to turn the light on. You are making a simple circuit, connecting the batteries in an electrical loop. The light comes from the graphite -- as electricity flows through it, it heats up and emits energy in the form of light and heat.

Thus, your light bulb! Troubleshoot to get a stronger light. If the light is weak, or isn't working, there are some things you can do to make sure you get a working light. Check the graphite thickness. While larger thicknesses work, 0. Insert the nails into the fruit about 2 inches away from each other, in such a way that the two nails stop at the centre of the fruit without touching.

Be careful inserting each nail. Go slowly, being sure not to go through the fruit completely. With the nails inserted into the citrus fruit, it is time to prepare your bulb. Take your bulb and peel off its plastic insulation, expose the wire underneath. Wrap the exposed wires around the head of the 2 nails. Use the electrical tape to secure each end of the wire on the nails. With the bulb's wires attached securely to both the copper nail and the galvanized nail, your coloured bulb will light up! Citrus fruits have an acidic content, and the more acidic it is, the better it is for conducting electricity.

This is the reason why even though the nails were not touching each other, your fruit battery still worked! The fruit contains positively charged ions. When you inserted the galvanized or zinc nail into the fruit, the negatively charged ions or the electrons started to move from the fruit to the zinc nail thus leaving the protons in the fruit. This transfer of electrons generates electricity as soon as you attach the wires to the nail, and the bulb lights up!

Amazing huh? Fruit Battery Experiment. Retrieved Oct 10, from Explorable. The text in this article is licensed under the Creative Commons-License Attribution 4. That is it. You can use it freely with some kind of link , and we're also okay with people reprinting in publications like books, blogs, newsletters, course-material, papers, wikipedia and presentations with clear attribution. Whether you are an academic novice, or you simply want to brush up your skills, this book will take your academic writing skills to the next level. Set the Triplett multimeter to the highest current scale, and put it in the DC-A mode.

Connect the Simpson multimeter to the jacks labeled for the voltmeter item E on the front panel of the EBB set to the highest voltage scale, and put it in the DC-V mode. Orient the Helmholtz coils HC so as to eliminate the influence of the Earth's magnetic field on the experiment. To do this, use a magnetic compass to determine the direction of the Earth's field, mark its direction on your work station with paper tape, and record its coordinates. Also measure and record the dip angle. Rotate the coils such that the plane of the HC lies in the plane of the Earth's magnetic field. With this orientation, the effect of the Earth's field on the HC is zero.

Check that the polarities agree with the ones marked on the front panel of the apparatus. Place the black cloth over the HC for easy observation of the electron beam. Turn on the heater supply, and allow two minutes for the filament to heat up. Apply V to the anode, which should produce a visible beam. Turn on the current through the HC, and observe how the electron beam is bent and forms a circle. Very carefully , rotate the glass bulb and observe the helical path of the electrons. Notice the direction of the helical axis. Rotate the glass bulb such that the plane of the electron beam is exactly parallel to the plane of the HC. Using the focus control, obtain a well-defined beam.

You may also need to adjust the filament power to accomplish this. If necessary, make a fine adjustment of the EBB's orientation so that the beam, after traveling a full circle, passes between the two metal struts which feed the power to the filament. Set the HC current at a fixed value e. Use the mirror behind the EBB to minimize parallax. You may add a second ruler that is taped to the front of the HC. Set the accelerating voltage at a fixed value e. To determine the magnitude of the magnetic field, you will use a calibrated magnetometer Bell Gaussmeter based on a calibrated Hall Probe.

Install the Hall-Probe holder in the HC. The absolute calibration of a voltage meter is a very difficult task.

Omega 3 Fat Research Paper text Lightbulb Experiment this Lightbulb Experiment is licensed under Lightbulb Experiment Creative Commons-License Attribution 4. Hydrogen from water vapor reduces the oxide, reforming Lightbulb Experiment vapor and continuing Lightbulb Experiment water cycle. Water vapor Lightbulb Experiment into hydrogen and oxygen Lightbulb Experiment the hot filament. Lightbulb Experiment Co v. Unlike discharge lamps Lightbulb Experiment LED Lightbulb Experiment, the power consumed Lightbulb Experiment equal Lightbulb Experiment the Lightbulb Experiment power Lightbulb Experiment the circuit.

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