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Foundations of Electronics
Electrical Quantities and Components

Section 2-1 Engineering Notation for Electronics


 

Definition

Engineering notation is a special form of power-of-10 notation where

  1. The coefficient must be between one and three  digits (not including zero) to the left of the decimal point.
  2. The exponent must be 0 or any multiple of 3

And since this is a power-of-10 system of notation, the base is always 10.

 

 

       
       
       
       
       

 

 

Name Label Power-of-10
kilovolt kV x 103
volt V x 100
millivolt mV x 10-3
microvolt mV x 10-6

 

 

Name Label Power-of-10
ampere (amp) A x 100
milliampere (milliamp) mA x 10-3
microampere (microamp) mA x 10-6

 

 

 

Name Label Power-of-10
megohm MW x 106
kilohm kW x 103
Ohm W x 100

 

Name Label Power-of-10
megawatts MW x 106
kilowatt kW x 103
Watt W x 100
milliwatt mW x 10-3
microwatt mW x 10-6

 

Adding and Subtracting Electrical Quantities

Procedure

Adding and Subtracting Electrical Quantities
 

Important

Terms being added or subtracted must have the same power of 10

1. Add the coefficients
2. Assign the common power of 10
3. Normalize the result, if necessary

 

Examples

Endless Examples & Exercises

 

 

 

 

Multiplying and Dividing Electrical Quantities

 

Procedure

Multiplying and Dividing Electrical Quantities
 

To Multiply:

1. Multiply  the coefficients
2. Add the coefficients
3. Normalize the result, if necessary

To Divide:

1. Divide  the coefficients
2.Subtract the coefficients
3. Normalize the result, if necessary

 

Examples

 

Endless Examples & Exercises

 

 

Powers and Roots of Electrical Quantities

 

 

 

 

 

 

 

 

 

David L. Heiserman, Editor

Copyright   SweetHaven Publishing Services
All Rights Reserved

Revised: June 06, 2015