Q.1
The input offset current equals the ___________
Q.2
The input stage of an OP-amp is usually a ___________
Q.3
A certain OP-amp has bias currents of 50 µA. The input offset current is
Q.4
For an OP-amp having differential gain Av and common mode gain Ac the CMRR is given by
Q.5
Which of the following amplifier is used in a digital to analog converter?
Q.6
In the common mode, ___________
Q.7
The two input terminals of an opamp are labeled as
Q.8
OP-amp circuits may be cascaded without changing their input output relationships
Q.9
A common mode signal is applied to ___________
Q.10
A certain noninverting amplifier has Ri of 1 kΩ and Rf of 100 kΩ. The closed-loop voltage gain is
Q.11
Hysteresis is desirable in Schmitt-trigger, because
Q.12
How many OP-amps are required to implement this equation Vo = V1
Q.13
The input impedance of a differential amplifier equals r'e times
Q.14
A differential amplifier is invariably used in the i/p stage of all OP-amps. This is done basically to provide the OP-amps with a very high
Q.15
An opamp has a slew rate of 5V/ S. the largest sine wave o/p voltage possible at a frequency of 1MHz is
Q.16
The closed-loop voltage gain of an inverting amplifier equal to
Q.17
Differential amplifiers are used in
Q.18
The node voltage at the top of the til resistor is closes to ___________
Q.19
A non inverting closed loop op amp circuit generally has a gain factor
Q.20
The tail current in a differential amplifier equals .
0 h : 0 m : 1 s