Category: Operational Amplifier

A. 700 nA
B. 99.3 µA
C. 49.7 µA
D. none of these

A. difference between two base currents
B. average of two base currents
C. collector current divided by current gain
D. none of these

A. 1225
B. 10,000
C. 80 dB
D. answers (A) and (B)

A. increases
B. decreases
C. is not affected
D. depends on Ri

A. half of either collector current
B. equal to either collector current
C. two times either collector current
D. equal to the difference in base currents

A. the output is grounded
B. one input is grounded and signal is applied to the other
C. both inputs are connected together
D. the output is not inverted

A. a.c. signals only
B. d.c. signals only
C. both a.c. and d.c. signals
D. neither d.c. nor a.c. signals

A. ß
B. RE
C. RC
D. 2ß

A. the noninverting input
B. the inverting input
C. both iputs
D. top of the tail resistor

A. r’e
B. 2r’e
C. r’e/2
D. 2RE