A. High and low
B. Positive and negative
C. Inverting and non inverting
D. Differential ans non differential
0
For an op-amp having differential gain Av and common-mode gain Ac the CMRR is given by___________?
0
Hysteresis is desirable in Schmitt-trigger, because______________?
A. Av + Ac
B. Av / Ac
C. 1 + Av / AC.
D. Ac / Av
0
The output voltage Vo of the above circuit is____________?
A. Energy is to be stored/discharged in parasitic capacitances
B. Effects of temperature would be compensated
C. Devices in the circuit should be allowed time for saturation and desaturation
D. It would prevent noise from causing false triggering
1
In the above circuit the current ix is___________?
A. -6V
B. -5V
C. -1.2V
D. -0.2V
0
An opamp has a slew rate of 5V/ S. the largest sine wave o/p voltage possible at a frequency of 1MHz is____________?
A. 0.6A
B. 0.5A
C. 0.2A
D. 1/12A
0
The approximate input impedance of the opamp circuit which has Ri=10k, Rf=100k, RL=10k?
A. 10 V
B. 5 V
C. 5V
D. 5/2 V
0
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. ∞
B. 120k
C. 110k
D. 10k
0
An ideal OP-AMP is an ideal__________?
A. 795mV
B. 395mV
C. 795mV
D. 39.5mV
0
How many op-amps are required to implement this equation Vo = V1?
A. Current controlled Current source
B. Current controlled Voltage source
C. Voltage controlled Voltage source
D. Voltage controlled Current source

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