Alternating Current AC : Electricity will change the direction of its flow periodically. Most houses are wired for AC, and so your home most likely is built for it too. The resulting number is the number of volts coming out of your outlet to help support your device.
A watt is a measurement of electricity or one unit of power. All you need to know is two things. Then, multiply the amperage by the number of volts. This is the maximum amount of watts your circuit can support at one time. If your circuit breaker ever trips or your experiencing any other electrical issues in your home, give us a call.
We provide various residential and commercial services and are especially proficient in wiring, lighting, and panels. We can also provide generators! Categories: Electrical Maintenance. All Rights Reserved. Privacy Policy. Knowing how much current is flowing to your load is very important in selecting the correct wire.
We take the distance into consideration to calculate the voltage loss. The other half of this calculation is the current. You need a larger wire to move more current. If you have a choice the higher voltage is best. These formulas are also useful in calculating AC alternating current wattage to determine the size of an inverter, which converts the DC electricity from a solar array to AC that can then be used to power lights and appliances in homes and businesses. Appliances include a face plate which contains all of its electrical data.
Lets suppose you have a microwave oven. The manufacturer will list an amp requirement on the electrical data of the face plate, which is usually attached to the back of the oven. Let's say that the rating on the face plate is 8. To calculate the watts, multiply 8. This equals watts. Now, lets calculate how much power the microwave will use in one day. If you use the microwave for 2 hours a day, then multiply the hours per day by the watts to get watt-hours per day. Let's see how this relation applies to the plumbing system.
Let's say you have a tank of pressurized water connected to a hose that you are using to water the garden. What happens if you increase the pressure in the tank? You probably can guess that this makes more water come out of the hose. The same is true of an electrical system: Increasing the voltage will make more current flow.
Let's say you increase the diameter of the hose and all of the fittings to the tank. You probably guessed that this also makes more water come out of the hose. This is like decreasing the resistance in an electrical system, which increases the current flow. Electrical power is measured in watts. In an electrical system power P is equal to the voltage multiplied by the current. The water analogy still applies. Take a hose and point it at a waterwheel like the ones that were used to turn grinding stones in watermills.
You can increase the power generated by the waterwheel in two ways. If you increase the pressure of the water coming out of the hose, it hits the waterwheel with a lot more force and the wheel turns faster, generating more power.
If you increase the flow rate, the waterwheel turns faster because of the weight of the extra water hitting it. In an electrical system, increasing either the current or the voltage will result in higher power. Let's say you have a system with a 6-volt light bulb hooked up to a 6-volt battery. The power output of the light bulb is watts.
So, you can rearrange the equation to solve for I and substitute in the numbers.
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