An ideal OP-AMP is an ideal______________?

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. 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

3. 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

4. For an ideal op-amp, which of the following is true?

   A. The differential voltage across the input terminals is zero
   B. The current into the input terminals is zero
   C. The current from output terminal is zero
   D. The output resistance is zero

5. 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

6. 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

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

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

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

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

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. 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