86. Nota
87. Calculate the input voltage if R1 = 100 Ω, Rf = 1 kΩ, and Vout = 550 mV.
(a) –50 mV
(b) –5 mV
(c) 550 mV
(d) 50 mV
88. What is the scale multiplier (factor) of a basic integrator?
(a) R / C
(b) C / R
(c) –RC
(d) –1 / RC
89. Nota
90. Calculate the overall voltage gain of the circuit if R1 = 100 and Rf = 1 k.
(a) –1
(b) –10
(c) 11
(d) 9
Related Posts
555555555580. Which of the following is (are) the result of gain reduction by a feedback? (a) The amplifier voltage gain is a more stable and precise value. (b) The input impedance of the circuit is increased over that of the op-amp alone. (c) The output impedance is reduced over that of the op-amp alone. (d) All of the above- 5555555555131. An ideal op-amp circuit has ________input impedance, ________ output impedance, and ________ voltage gain. (a) zero, infinite, infinite (b) infinite, zero, zero (c) zero, zero, infinite (d) infinite, zero, infinite
- 5555555555198. ______ is NOT a characteristic of an ideal op-amp. (a) Infinite voltage gain (b) Minimum bandwidth (c) Infinite input impedance (d) Zero output impedance
- 555555555526. An amplifier has an input signal voltage of 0.054 mV. The output voltage is 12.5 V. The voltage gain in dB is (a) 53.6 dB. (b) 107.3 dB. (c) 231 dB. (d) 116 dB.
- 555555555541. The input power to a device is 10,000 W at 1000 V. The output power is 500 W, and the output impedance is 100 . Find the voltage gain in decibels. (a) –30.01 dB (b) –20.0 dB (c) –13.01 dB (d) –3.01 dB