An ideal OP-AMP is an ideal__________?

Related Mcqs:

1. 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

2. 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=∞

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. 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. 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

6. 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

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. 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

9. In the differential voltage gain & the common mode voltage gain of a differential amplifier are 48db & 2db respectively, then its common mode rejection ratio is________________?

   A. 23dB
   B. 25dB
   C. 46dB
   D. 50dB

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