If you want total protection, consider that phone and cable lines can carry power spikes too. Copyright©2020 - FEEDPROF. CNET editors pick the products and services we write about. Understanding the difference between amps, volts, ohms and joules is the first key to building your own circuits. Note that CNET may get a share of the revenue if you buy anything featured on our site. Lv 7. Joules to watts calculator. The difference between the full end and the empty end is the potential energy. That's because engineering texts tend to skim over the concepts and then dive deep into the math. Think of electricity flowing through a wire like water flowing through a pipe. Subscribe our newsletter to stay updated. Faster flow of electrons means more coulombs per second, which is the same as more amps. Everytime I ask someone this question, the answer is always too technical. I understand this much, which might help you of what level I am on. A joule is a unit of energy or work. These usually have a circuit breaker (on/off switch) of some sort, but most don't offer any real "protection" from electrical issues. Volts do not kill you, current does. Coulombs = Amps/Second. Explain Like I'm Five is the best forum and archive on the internet for layperson-friendly explanations. To get some answers, the Wirecutter did a massive test on surge protectors, essentially blowing them up to see how well they worked. He also thinks you should check out his best-selling sci-fi novel about city-sized submarines and its sequel. So with this analogy in mind the definitions below for amp, volt and watt should be easier to understand: Amp – an ampere is the unit for measuring electricity. The amount of water running through the pipe is the current (amps). What's new in the world of desktop computers? I've been kinda sloppy with my terminology, so I won't try to get into joules vs watts and work vs energy. An In Depth Look At How To Fix This! Remember the joule rating we discussed earlier? Almost nothing actually runs on 120 volts (or alternating current, for that matter), so unless you've got some really wacky (or cheap) gear, and live in an area with bizarrely inadequate power, a power conditioner isn't something you need. Posted by 7 years ago. The best answer I can give you... is the number of milliamps in a joule depends on the conditions outlined above. In the example, energy will be required to pump the molasses past the kinks and out through the end. With an incredible range of prices and features, not to mention a barrage of questionable marketing promises, it's hard to figure out what's worth the money, and what's nonsense. Joules (J) to volts (V) calculator.. The water pressure would be the voltage. Without this information it is impossible to answer your question. Most portable power strips add two to three additional outlets, plus offer direct USB charging (see number 8). It is defined as the amount of current needed to transport one coulomb of electric charge per second. 3. 0 0. maussy. A coulomb is the amount of molasses passing through the hose in one second. Watts is power, but I do not know the units, or how you arrive at Wattage. Generally, this is either 1 or 2 amps (often labeled 1A or 2A). Here are a few tips before you start shopping. If you think about it, you'll realize that you can either pump a lot of water a small height or a little water a taller height for the same amount of work. If you push the electrons harder (increase voltage), then electrons will flow through the wire faster. Generally, the more joules the better, as this means the device can handle one large surge, or multiple smaller surges, before your gear is in danger. All electronics have a power supply that takes the incoming wall current (120v in the US), filters it for noise, and converts it into whatever the device needs. This is resistance is measured in ohms. Typically, power strips are cheap, multi-outlet products that are merely an expansion of a wall outlet. Your email address will not be published. Amperes cannot be converted to joules, because they are two different units. There are a number of products on the market that claim to "condition" the power from the wall, promising improved performance in your gear. We don't currently have recommendations for specific surge protectors, but you can find plenty of options for as little as $20 or less at Amazon. If one coulomb flows through a wire in one second, you have a current of one amp. If you live in an area with lots of thunderstorms, your gear is probably more likely to experience power surges. The amount of milliamps in a joule depends also on the voltage, and the amount of time that the current was running for. The terms may seem interchangeable, but there’s a big difference. Some might have the barest level of protection, but they're all pretty much just like plugging into the wall direct. How much you need it will vary. You can think of volts (V) as how hard an electron is being pushed through a wire. Energizers generally have a capacitor that serves as a storage tank for electrical energy. As a result, nobody knows how to explain these things except in terms of math and shorthand jargon. However, there is a relationship between them. Knowing that difference can help you understand how your electric fence will perform. This means you get fewer electrons through the wire per second, which means fewer amps. Amps would be the volume of water flowing through the pipe. The wire is going to resist the motion of electrons to some degree. Advertisement. HDMI ARC and eARC: Audio Return Channel for beginners. Discussion threads can be closed at any time at our discretion. How much the pipe slows down the water is its resistance (ohms). Luckily, an everyday analogy can help clarify these concepts. Handy, for sure, but check what the output amp rating is. Many devices use wall warts -- plugs that convert AC power into DC power and look like little boxes with electrical prongs sticking out. Make the pipe a bigger diameter, and more current runs through it...you've lowered the resistance of the pipe. Joules to volts calculator. You're missing one unit that I think is important for understanding the other units. Be respectful, keep it civil and stay on topic. Joule discovered the relationship between energy (Q) and the flow of electricity. If you have something constantly supplying power, you can pump water out of one tank and into the other, so current will always flow through your pipe. How Do I Save Pictures if the Camera Says Format Memory Card? The wattage is the amperage times the voltage. Keep in mind that just because the warranty exists doesn't mean you'll ever see a dime from it. A coulomb is an amount of electrical charge, but you can think of it as a collection of electrons. This article is the updated successor to that piece, though we'll cover some similar ground. Just think of a coulomb as one bucket of electrons. Still have a question? Got a question for Geoff? Discuss: 10 things you should know about surge protectors, Best HDMI cables for your new 4K and HDR TV. Enter the energy in joules, charge in coulombs and press the Calculate button: Even if you live in the desert, your A/C or refrigerator could kick power spikes back down the lines to your A/V gear. see the moving electricity inside different circuits. There are about 1018 to 1019 electrons in a coulomb. Stored Joules and Output Joules. To explain to a general audience we must remove the math, remove the jargon, and most importantly remove the grade-school misconceptions. One way to think of these terms is to imagine molasses running through a garden hose. Don't Panic! To understand the difference between an amp and a joule, you need to understand voltage. Watts would be the power (volts x amps) the water could provide (think back to the old days when water was used to power mills). Electrical Items Dealers in Kolkata- A New Business Concept, Save Yourself From Falling In To Identity Theft With Lifelock Solutions, How to Display a Surveillance Camera on an LCD, Advantages Of Wireless Security Camera Systems. Contact: What Are the Differences Between an Amp & a Joule? Our second foundational equation was discovered by a physicist by the name of James Prescott Joule. Imagine that you have not yet turned on the hose full of molasses. All Rights Reserved. This means that the work required by the cyclist is the amount of flow times the length of the hose. If you connect the two tanks with a pipe at the bottom, the water is going to run between the two tanks until the water in both tanks is at the same level (voltage). In electronics, amps and joules are two different but related units of measurement. Truly excellent ways to know how to make app. Joules (J) to watts (W) calculator.. (On a related note, definitely check out #10. Well, it means that over time, a surge protector is going to wear out. Xbox 360 Will Not Read Games – Are Your Discs Not Reading? We delete comments that violate our policy, which we encourage you to read. If you've had your current surge protector for more than a few years, it's probably worth replacing. I understand this much, which might help you of what level I am on. Here is the second part of the film. Volts do not kill you, current does. You'll probably never need it, but it certainly doesn't hurt to have it. To find it, you must know the amperage, the voltage, and the wattage (number of joules per second). If you know you've had a serious electrical event (like lighting blew out a transformer down the street), it's probably worth replacing your surge protector just in case. The exact number isn't important for this explanation. One is current (molasses flow) and the other is work (bicycling). So power is measured in voltage times current, which we also call a watt. Over time, the parts inside the protector wear down, reducing its effectiveness. © 2020 CNET, A RED VENTURES COMPANY. Amps (A) measure current, which is basically how many coulombs flow past a point per second (C/s). I'm not saying that if you think you need four outlets get a 12, but a six is probably a good investment. The amount of energy needed to keep the molasses flowing at a rate of one coulomb per second is a joule. For a little background, check out what makes a good surge protector. Many surge protectors come with USB connections, so you can charge your mobile devices without having to use a their wall warts. If you keep the voltage the same, but increase resistance, that makes it harder to push the electrons. You know that P = 100 W, and V = 6 V. So, you can rearrange the equation to solve for I and substitute in the numbers. Everytime I ask someone this question, the answer is always too technical.

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