Electronic Devices Circuits Quiz Online Exam Quiz
Electronic Devices Circuits Quiz GK Quiz. Question and Answers related to Electronic Devices Circuits Quiz. MCQ (Multiple Choice Questions with answers about Electronic Devices Circuits Quiz
Consider the circuit shown below which reduces the impact of the input bias current. If IB1 = IB2 = Input bias current, then determine the value of R3 so that the output voltage (v0) is not impacted by the input bias current.
Options
A : (R1 R2)/(R1+R2)
B : (R1 R2)/(R1-R2)
C : R1-(R1 R2)/(R1+R2)
D : R2- (R1 R2)/(R1+R2)
Consider an inverting amplifier circuit designed using an op amp and two resistors, R1 = 10 k? and R2 = 1 M?. If the op amp is specified to have an input bias current of 100 nA and an input offset current of 10 nA, find the output dc offset voltage resulting.
Options
A : 0.1 mV
B : 1 mV
C : 10 mV
D : 100 mV
What is the corner frequency of the resulting STC network?
Options
A : 1 Hz
B : 0.16 Hz
C : 0.33 Hz
D : 0.5 Hz
Select the largest possible value for a feedback resistor RF so that at least ±10 V of output signal swing remains available.
Options
A : 10 k?
B : 100 k?
C : 1 M?
D : 10 M?
Assuming that when the power supply is turned on the capacitor voltage is zero, how long does it take for the amplifier to saturate?
Options
A : 3s
B : 6s
C : 9s
D : 12s
Consider an inverting amplifier with a nominal gain of 1000 constructed from an op amp with an input offset voltage of 3 mV and with output saturation levels of ±10 V. What is (approximately) the peak sine-wave input signal that can be applied without output clipping?
Options
A : 7 mV
B : 10 mV
C : 13 mV
D : 9mV
The circuit is to operate at a temperature in the range 0°C to 75°C and the temperature coefficient of VOS is 10 ?V/°C?
Options
A : 8.5 mV
B : 9 mV
C : 9.5 mV
D : 10 mV
The circuit is to operate at a constant temperature?
Options
A : 8.5 mV
B : 9 mV
C : 9.5 mV
D : 10 mV
One of the DC imperfections of the amplifiers are dc offset voltage which is
Options
A : Existence of output signal even when the common mode signal is zero
B : Existence of common mode signal causing zero output signal
C : Existence of output signal even when the differential signal is zero
D : Existence of differential signal causing zero output signal
For the amplifier shown determine the value of the bias current (Ib) and input offset current (Io) respectively.
Options
A : Ib = IB1 + IB2 Io = IB1 – IB2
B : Ib = IB1 + IB2 Io = | IB1 – IB2 |
C : Ib = 0.5(IB1 + IB2) Io = | IB1 – IB2 |
D : Ib = 0.5(IB1 + IB2) Io = IB1 – IB2
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