Ingenieria Electronica Digital

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|Activity 1.1.2 Scientific and Engineering Notation |


Introduction

In electronics, wefrequently work with very small and very large numbers. For example, the propagation delay (i.e., the time it takes for the output to change after the input has changed) for a standard digital logic gateis 0.0000000095 seconds. Moreover, the clock speed of a typical personal computer is 2400000000000 Hz. Working with numbers of this magnitude, both large and small, can be cumbersome and prone toerror. For this reason we use a power-of-ten notation. With a power-of-ten notation, any number, no matter how large or small, can be expressed as a decimal number multiplied by a power-of-ten.Scientific and engineering notations are the two most common forms of power-of-ten notation. In the field of electronics, engineering notation is the preferred notation because of the direct mapping betweenits powers and the International System of Units (the International System of Units is abbreviated SI from the French Système International d'Unités). The SI system is the modern form of the metricsystem. It is the world's most widely used system of units for science and engineering.

In this activity you will learn how to express numbers in scientific and engineering notation as well as theappropriate SI prefix.



Equipment

0. Paper and pencil
0. Scientific calculator



Procedure

1. Express each of the following numbers in scientific notation.

a.0.00000000356 = __________

b. 934,000,000 = __________

c. 847 = __________

d. 0.00092 = __________

e. 3,510,000 = __________




2. Expresseach of the following numbers in engineering notation.

a. 0.00000000356 = __________

b. 934,000,000 = __________

c. 847 = __________

d. 0.00092 =...