INTRODUCTION
Much of electronics is concerned with arithmetic.
The technician must
be able to figure out resistances, voltages, current, etc.
Fortunately,
formulas have been developed to help you find these values.
Formulas depend
on your knowing certain values, from which you find an unknown value.
In
electricity, these values are often reported as metric numbers (such as 3 ,
5M) for the sake of convenience.
No attempt is made in this text to establish a relationship between
the formulas and numbers and the concepts of basic electricity.
You will
learn the meanings and
applications of all of these formulas in other
subcourses.
By that time, you are expected to already be able to use the
formulas to solve problems.
The frames in this section are arranged differently than those in
Section 1.
However, by following the directions given, you will be able to
easily proceed through the text.
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