That’s because electrical components such as resistors, transistors, capacitors, and integrated circuits all have maximum power ratings.For example, the most common type of resistor can dissipate at most 1/4 watt. For example, suppose you have a light bulb connected to a 10-volt power supply, and one-tenth of an ampere is flowing through the light bulb.
To calculate the wattage of the light bulb, you use the P = E × I formula like this:Often, you know the voltage and the wattage of the circuit and you want to use those values to determine the amount of current flowing through the circuit. Fortunately, this one is pretty simple:To use the equation correctly, you must make sure that you measure power, voltage, and current using their standard units: watts, volts, and amperes. A Glossary of Electrical Terms Become an Electrician Electricians are skilled tradespeople working in a variety of different residential and industrial settings.
Below you’ll find over XX definitions of electrical terms.
Electronics Basics: Electrical Power.
Electrical Terms For Circuits. Ammeter — An instrument for measuring the flow of electrical current in amperes.Ammeters are always connected in series with the circuit to be tested. Basic electrical terms and concepts - current, voltage, resistance, charge, power, efficiency. The three key concepts you need to know before working with electronic circuits are current, voltage, and power. Sharpen your skills with our collection of quizzes on electrical safety, maintenance & testing of electrical equipment and industry standards. It becomes useful only when the energy carried by an electric current is converted into some other form of energy, such as heat, light, sound, or radio waves. It is easy to get a little confused when you are talking to an electrician that has been called out to your home or office.
Posted in: Electrical Tips for Business. This article contains definitions and explanations of terminology used and will help you understand what he … The concept of electricity is both familiar and mysterious.
Alternating Current (AC) — An electric current that reverses its direction many times a second at regular intervals. For example, in an incandescent light bulb, voltage pushes current through a This relationship lends itself to a simple equation. If it’s slang terms you’re looking for, then look no further: American Job Site Slang. Basic Electrical Terms. Current is the organized flow of electric charges through a conductor, and voltage is the driving force … Electric current, in and of itself, isn’t all that useful. We all know what electricity is, or at least have a rough […] This is an electric current that reverses …
In order to understand even the simplest concepts of electronics, you must first understand what electricity is. You can do that by turning the equation around, like this:For example, if you want to determine how much current flows through a lamp with a 100-watt light bulb when it’s plugged into a 117-volt electrical outlet, use the formula like this:Thus, the current through the circuit is 0.855 amperes.Here are some final thoughts concerning the concept of power:Did you notice that current and voltage are represented by the letters I and E, not the letters C or V as you might expect, but power is represented by the letter P? This site aims to provide all the i… Sometimes you wonder if the people who make the rules are just trying to confuse everyone.Maybe the following table will help you keep things sorted out:The definition of a volt is simple: One volt is the amount of electromotive force (EMF) necessary to do one watt of work at one ampere of current.Calculating the power dissipated by a circuit is often a very important part of circuit design. After all, the whole purpose of electronics is to get electricity to do useful and interesting things. AC (Alternating Current) — AC stands for Alternating Current. The three key concepts you need to know before working with electronic circuits are current, voltage, and power. By Doug Lowe . If you use a 1/4-watt resistor in a circuit that dissipates more than 1/4 watt of power, you run the risk of burning up the resistor.