Basic Electrical Theory REFERENCES. We can say the flow of charge builds up the current, which we call Electricity. You will still be required to know how to do the calculations manually, and to understand how the electrical formulas work. Example 1: A wire carrying a current of 4 Amperes is having a resistance of 5 $\omega$. Electricity has varied applications. Example - Electric Stove. Electrical & electronic formulas - Basic electronics, electrical units, symbols, basic concepts, DC/AC circuit laws, resistor color code Single Phase: Example 1: A wire carrying a current of 4 Amperes is having a resistance of 5 $\omega$. thanks a lot byjus, tomorrow i am having an exam, so I was revising the formulas,and that time i saw that byjus had all formulas in electricity, It helped me a lot ,Thank you. Solved Examples. P = (5 MJ) (10 6 J/MJ) / ((60 min) (60 s/min)) = 1389 W = 1.39 kW. Ohm’s Law and Joule’s Law are commonly used in calculations dealing with electronic circuits. Very nice help thank u for supporting children, Very nice I was finding the formula in textbook and now I got all the formula on one website, Really helpful specially for the last time formula go through with the units. This is a very well written article. Top 100 Basic Electrical Engineering Formulas. Today you'll learn the basic definition voltage and i... Electrical symbols are simplified and clean representation of circuit components. In parallel electrical circuits, the current doesn't remain same. Amperes (I): Amps = volts / ohms. Copyright 2016-2020 Dusten Huebner. You will still be required to kn simple problems. Figure 1–2. To learn more awesome electrician information, feel free to head to the electrical theory page. You can rest easy knowing that the calculations will be accurate – eliminating the risk of human error, which is quite possible when you are in a hurry. Amps = square root of (watts / ohms) AC Motor Formulas: E = voltage / I = amps / W = watts / PF = power factor / Eff = efficiency / HP = horsepower. Required fields are marked *. The electrical current always remains same in the series components. It helps me a lot. Angular velocity. All the things you learn as an electrician apprentice will be very useful in your career. Electricity is the flow of charge in a conductor from anode to cathode. Some of the commonly used Electricity formulae are listed below. lamps etc.) Volts = watts/ amperes. An electric heater has a potential difference of 220 V and resistance is 70 Ω. Very nicely you are helpful for me coz i understand everything that i know, I’m a student of class 10 and I was full of doubt about the formulas and I am so happy To understand it by you ,thank you byjus, Very nice sir absolutely byjus is a great website or app, Thank you very much byju’s = 5 mF $\times$ 25 V The current divide rule is used to find the divided current in parall... Series and Parallel arrangements are two basic configurations in which we can arrange the electrical components. Electrical Formulas helps us to calculate the parameters related to electricals in any electrical components. Byjus has always helped me with my studies. Thank u byjus. Electricity Formulas are applied in calculating the unknown electrical parameters from the known in electric circuits. We provide different types of electrician job descriptions, and help you to understand what to expect. After a while you may start having dreams of formulas running through your brain, but remember: the more you learn now, and the more you practice your electrical formulas, the easier your job will be. Academic Program for Nuclear Power Plant Personnel, Volume IV, Columbia, MD: General Physics Corporation, Library of Congress Card #A 326517, 1982. Step 1: Convert 125 percent to a decimal: 1.25 Step 2: Multiply the value of the 80A load by 1.25 = 100A. Example 1. If you want to become an electrician, then read our detailed electrician career advice. Very nice formula for class 10 and very useful, Your email address will not be published. This is true regardless of which type of electrician job you choose. nd. REFERENCES. However, I ask that you review your formula in the upper right hand quadrant where you have V = V/I. Calculate the potential difference across its ends. Amps from kVA. An electric stove consumes 5 MJ of energy from a 230 V power supply when turned on in 60 minutes. 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