# Basic Electrical Formulas

### Electrical Engineering Formulas

Basic Electrical Engineering Formulas: circuit element impedances, Ohm's law, impedances for series and parallel connections. Created Date: 5/21/2010 4:14:08 PM

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Electrician's Math and Basic Electrical Formulas Unit 1 Mike Holt Enterprises, Inc. • www.MikeHolt.com • 1.888.NEC.CODE * 21.99—fourth number is five or above = 22 rounded up 367.20—fourth number is below five = 367 rounded down Rounding Answers for Multiple Choice Questions You should round your ...

### UNIT 1—ELECTRICIAN'S MATH AND BASIC

Electrical Formulas with Sample Calculations viii 4.3 Motor Horsepower Rating ..... 56 4.4 Motor Current Ratings ..... 57 4.5 Calculating Motor FLA..... 58 4.6 Motor-Starting Current ...

### Basic Electricity Test Study Guide

Electrical Concepts * Understand basic electrical principles * Understand the laws of attraction and repulsion * Understand the principle of charge * Understand ... The Reference Booklet, which contains the figures, also lists all formulas? the formulas you might need.

### Electrician’s Math and Basic Electrical Formulas ...

UNIT 1. Electrician’s Math and . Basic Electrical FormulasINTRODUCTION TO UNIT 1—ELECTRICIAN’S MATH AND BASIC ELECTRICAL FORMULAS. In order to construct a building that will last into the future, a strong foundation is a prerequisite.

### Basic Electricity TIP

You will use formulas on the test, but you don't need to have them memorized. ... ELECTRICITY FUNDAMENTALS Electrical Concepts • Understand basic electrical principles • Understand the laws of attraction and repulsion • Understand the ...

### Electrical Conversion Formulas

Electrical Conversion Formulas Power Factor and Efficiency when used in above formulas should be expressed as decimals. For 2-phase, 3-wire substitute 1.41 instead of 1.73.

### Electrical Formulae

Electrical Formulas Electrical Formulas. 399 www.emersonct.com 800-893-2321 Symbols & Formulae Electrical Formulae Electrical Quantities Quantity Symbol Unit NameUnit Symbol Electromotive force E, e* Volt V Potential difference V, v* Volt V Current I, i* Ampere A Magnetic fl ux Φ Weber Weber ...

### Basic Vocational Knowledge - Circuits, Formulas and Tables ...

Table of Contents Basic Vocational Knowledge - Circuits, Formulas and Tables - Electrical Engineering.....1 Preface .....1 1.

### Electrical Circuits

SAMPLE CALCULATIONS Here are some basic formulas you will find helpful in solving more complex electrical problems. They provide the knowledge required for confidence and thorough understanding of basic electricity. The following abbreviations are used in the formulas: E = VOLTS I = AMPS R = OHMS P = WATTS ...