PASCO Specialty & Mfg. AC/DC Electronics Laboratory EM-8656 User Manual

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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)

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?