In an electrical system, you can increase the power by increasing the current or increasing the voltage. It is represented by a simple equation. If you keep the resistance the same and increase the voltage, the current has to increase. Like in our hose analogy, if you increase the pressure, then more water will flow through it.
Resistance works against voltage to slow down the flow of electrons. If resistance increases while the voltage stays the same, the current flowing through the circuit will decrease. Similarly, if you pinch the hose to create a smaller diameter or increase the resistance, less water comes out of the end.
To bring together watts power , amps current , and volts voltage , we need one more simple equation. Looking back at our example of water flowing through a hose, we can now see how power is directly related to current and voltage using this equation. The faster the wheel turns, the more power is generated. If the hose size remains the same, we can make the wheel turn faster in two ways. The first is to increase the flow rate, which means more water and weight are hitting the wheel and spinning it faster.
The second way is to increase the water pressure so that the water is hitting the wheel with more force and turning it faster. In our analogy, the water flow rate is equivalent to current and water pressure is equal to voltage.
As the equation above shows, if you increase either the current or the voltage, your power will also increase. Now that you have a basic understanding of the fundamentals of power and electricity, you should be able to tackle your RV electrical projects with a little more confidence.
Our Reno, Nevada-based sales and customer service team is standing by at to take your questions! It is achieved by finding the product of amps and volts. Perhaps it is the most commonly used term among the three. At the end of every month, your electricity firm provides you with a bill for the total amount of electricity consumed by you. This figure is usually in kilowatts.
One kilowatt equals a thousand watts. From here, we can confidently conclude that the more volts and amps your household electrical items need to operate, the higher your energy monthly bills will be.
Now that you have known the meanings of these three electrical terms, we will discuss how they relate to one another. Consider the case of a plumbing pipe. Here, the water pressure is equivalent to voltage whereas the rate of water flow is equivalent to the amount of current and the size of the pipe is the resistance.
In the world of physics, we do have a basic simple equation which defines these three terms are related. Typically, it states that the current flowing through a conductor between two points is directly proportional to the total voltage across the same two points.
In simple terms, it states that the current should be equal to the available voltage divided by the resistance. It should be noted that the law was named after renowned German physician Ohm Georg, who came up with the whole concept. When you increase the water pressure in the pipe, definitely more water will be propelled out the pipe.
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.
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