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
Related Mcqs:
- 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=∞ - 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 - 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 - 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 - Which of the following amplifier is used in a digital to analog converter?
A. Non inverter
B. Voltage follower
C. Summer
D. Difference amplifier - 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 - 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 - 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 - 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 - 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
