Search
.Management Sciences
Category: OP-AMP Circuits
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
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
Hysteresis is desirable in Schmitt-trigger, because______________?
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
When a step-input is given to an op-amp integrator, the output will be______________?
A. A ramp
B. A sinusoidal wave
C. A rectangular wave
D. A triangular wave with dc bias
The two input terminals of an opamp are labeled as______________?
A. High and low
B. Positive and negative
C. Inverting and non inverting
D. Differential ans non differential
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
If ground is applied to the (+) terminal of an inverting op-amp, the (–) terminal will_____________?
A. Not need an input resistor
B. Be virtual ground
C. Have high reverse current
D. Not invert the signal
Recent Comments