Related Mcqs:

1. 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=∞

2. An ideal OP-AMP is an ideal______________?

   A. Current controlled Current source
   B. Current controlled voltage source
   C. Voltage controlled voltage source
   D. voltage controlled current source

3. 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

4. An ideal OP-AMP is an ideal__________?

   A. Current controlled Current source
   B. Current controlled Voltage source
   C. Voltage controlled Voltage source
   D. Voltage controlled Current source

5. Which of the following amplifier is used in a digital to analog converter?

   A. Non inverter
   B. Voltage follower
   C. Summer
   D. Difference amplifier

6. Calculate the cutoff frequency of a first-order low-pass filter for R1 = 2.5kΩ and C1 = 0.05μF___________?

   A. 1.273kHz
   B. 12.73kHz
   C. 127.3 kHz
   D. 127.3 Hz

7. An opamp has a slew rate of 5V/ S. the largest sine wave o/p voltage possible at a frequency of 1MHz is____________?

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

8. 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

9. 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

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