Related Mcqs:

1. Assume that the op-amp of the fig. is ideal. If Vi is a triangular wave, then V0 will be______________?

   A. Square wave
   B. Triangular wave
   C. Parabolic wave
   D. Sine wave

2. An amplifier using an opamp with slew rate SR=1v/sec has a gain of 40db.If this amplifier has to faithfully amplify sinusoidal signals from dc to 20KHz without introducing any slew-rate induced distortion, then the input signal level exceed_____________?

   A. 795mV
   B. 395mV
   C. 795mV
   D. 39.5mV

3. The approximate input impedance of the opamp circuit which has Ri=10k, Rf=100k, RL=10k?

   A. ∞
   B. 120k
   C. 110k
   D. 10k

4. The two input terminals of an opamp are labeled as______________?

   A. High and low
   B. Positive and negative
   C. Inverting and non inverting
   D. Differential ans non differential

5. The output voltage Vo of the above circuit is____________?

   A. -6V
   B. -5V
   C. -1.2V
   D. -0.2V

6. For an op-amp having differential gain Av and common-mode gain Ac the CMRR is given by___________?

   A. Av + Ac
   B. Av / Ac
   C. 1 + Av / AC.
   D. Ac / Av

7. A differential amplifier has a differential gain of 20,000. CMMR=80dB. The common mode gain is given by_______________?

   A. 2
   B. 1
   C. 1/2
   D. 0

8. The ideal OP-AMP has the following characteristics

   A. Ri=∞ ,A=∞ ,R0=0
   B. Ri=0 ,A=∞ ,R0=0
   C. Ri=∞ ,A=∞ ,R0=∞
   D. Ri=0 ,A=∞ ,R0=∞

9. A 741-Type OP-AMP has a gain-bandwith product of 1MHz. A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of______________?

   A. 50KHz
   B. 100KHz
   C. 1000/17KHz
   D. 1000/7.07KHz

10. An OPAMP has a slew rate of 5 V/μ S .The largest sine wave O/P voltage possible at a frequency of 1 MHZ is_______________?

    A. 10 volts
    B. 5 volts
    C. 5/ volts
    D. 5/2 volts