13
2-21. The collector load resistor is represented
by which of the following symbols?
1. RT
2. Rg
3. RL
4. RB
2-22. In the quiescent state of a transistor
circuit, what does the symbol VC
indicate?
1. Collector voltage supply
2. Collector voltage
3. Current gain
4. Capacitor voltage
Figure 2B.—A basic transistor amplifier.
IN ANSWERING QUESTIONS 2-23
THROUGH 2-26, REFER TO FIGURE 2-B.
2-23. What is the purpose of CC?
1. To bypass ac signals to ground
2. To couple the input signal to the
amplifier
3. To provide base bias to the preceding
stage
4. To prevent ac variations on the base
2-24. When the positive alternation of the input
signal is applied at point A, what, if
anything, happens to the bias on the base
of the transistor?
1. It increases
2. It decreases
3. It remains at its quiescent value
4. Nothing
2-25. When the positive alternation of the input
signal is applied at point A, what
happens, if anything, to the current
through RL?
1. It increases
2. It decreases
3. It remains at its quiescent value
4. Nothing
2-26. When the signal shown at point A is
applied to the base of Q1, which of the
following signals will be at the output?
1.
3.
2.
4.
2-27. What type of bias keeps the base bias
constant and improves thermal stability?
1. Self-bias
2. Fixed bias
3. Combination bias
4. Each of the above
