PASCO EM-8656 AC_DC ELECTRONICS LABORATORY - Manual (Page 95)

91
012-05892A AC/DC Electronics Laboratory
®
Smart Cursor
Y-coordinate
➅
Record the Y-coordinate of that point on the plot of Vbase.
voltage _________ (V)
QUESTIONS
➀ What is the behavior of the LED when the circuit is active?
➁
How does the general shape of the plot for the Vbase compare to the plot of Vcollector for the
transistor?
➂
What is the voltage on the Vbase plot when the LED turns on (that is, when the Vcollector
voltage begins to rise above zero)?
➃
What is the relationship between the behavior of the LED and the point on the plot of Vcollector
when the voltage begins to rise above zero?