Figure 1-11.Transistor operation.
the makeup of this transistor is two elements of N-type
material (collector and emitter) with an element of
P-type material (base) sandwiched in between. The
NPN transistor will allow a high current negative
charge to flow from the collector to the emitter
whenever a relatively low current positive charge is
applied to the base.
REVIEW 2 QUESTIONS
Q 1 . What material allows electric current to flow?
Q2. Name two electrical components that use
Q3. What is the basic difference in operation
between a diode and a transistor?