Page 39 - Bebop to The Boolean Boogie An Unconventional Guide to Electronics Fundamentals, Components, and Processes
P. 39
20 rn ChapterThree
Correspondingly, if a piece of wire is moved through an externally
generated electromagnetic field, it cuts the lines of electromagnetic flux,
resulting in an electrical potential being
I
generated between the two ends I I . Externally generated
of the wire (Figure 3-12). I I electromagnetic field
I
+ve (Resulting voltage)
Direction of movement
-ve
I I I
I I Figure 3-12. A conductor cutting through an
I electromagnetic field generates an electrical potential
Engineers sometimes make use of components called inductors, which may
be formed by winding a wire into a coil. When a current is passed through the
coil, the result is an intense electromagnetic field (Figure 3-13).
/ ' Intense field (b) 5ymbol
-ve
(a) Inductor Component Figure 3-1 3. Inductor:
component and symbol
