10
ASSIGNMENT 2
Textbook assignment: Chapter 3, “Special Amplifiers,” pages 3-1 through 3-70.
_________________________________________________________________________________
2-1. What is the maximum number of
possible inputs in a differential
amplifier?
1. One
2. Two
3. Three
4. Four
2-2. What is the maximum number of
possible outputs in an differential
amplifier?
1. One
2. Two
3. Three
4. Four
Figure 2A.—Difference amplifier.
IN ANSWERING QUESTIONS 2-3
THROUGH 2-10, REFER TO FIGURE 2A
AND THE FOLLOWING INFORMATION:
THE AMPLIFIER HAS A GAIN OF 6 AND
THE INPUT SIGNALS ARE SINE WAVES
WHICH ARE EQUAL IN AMPLITUDE AND
VARY BETWEEN +2 VOLTS AND -2
VOLTS.
2-3. If the input signals are in phase with each
other, what will the peak-to-peak
amplitude of the output signal be?
1. 0 volts
2. 12 volts
3. 24 volts
4. 48 volts
2-4. Which of the following statements
describes the output signal if the input
signals are in phase with each other?
1. A sine wave in phase with the input
signals
2. A sine wave 180 degrees out of phase
with the input signals
3. A sine wave 90 degrees out of phase
with the input signals
4. Not a sine wave
2-5. If the input signals are 180 degrees out of
phase with each other, what will the
peak-to-peak amplitude of the output
signal be?
1.
0 volts
2. 12 volts
3. 24 volts
4. 48 volts
2-6. Which of the following statements
describes the output signal if the input
signals are 180 degrees out of phase with
each other?
1. A sine wave 90 degrees out of phase
with each input signal
2. A sine wave in phase with input
signal number one
3. A sine wave in phase with input
signal number two
4. Not a sine wave
