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. So, you have watts multiplied by 2 hours, which equals watt-hours per day.
Mobile Newsletter chat close. Mobile Newsletter chat dots. Mobile Newsletter chat avatar. Mobile Newsletter chat subscribe. Environmental Science. Energy Production. Some pylons near a power transform station at sunrise. More voltage in an electrical system makes more current flow. Electrical Efficiency " ". Electrical systems are more efficient when a higher voltage is used to reduce current. How much does it cost to run an electric blanket?
Cite This! Try Our Sudoku Puzzles! More Awesome Stuff. Rate of current flow — Amperes. Leave a Reply Cancel reply Comment. Enter your name or username to comment. Enter your email address to comment.
Enter your website URL optional. Ampere can be compared to the rate or speed at which water flows through each of the smaller pipes. Current can measure at any point in a circuit. It is basically the number of electrons passing a point per second. Develop and improve products. List of Partners vendors. Featured Video. Article Sources. The Spruce uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles.
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