Explore topic-wise MCQs in Electronic Devices and Circuits.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Electronic Devices and Circuits knowledge and support exam preparation. Choose a topic below to get started.

1.

Consider a Miller integrator with a time constant of 1ms and an input resistance of 10 k . Let the op amp have VOS (offset voltage) = 2 mV and output saturation voltages of 12 V. What is the corner frequency of the resulting STC network?

A. 1 Hz
B. 0.16 Hz
C. 0.33 Hz
D. 0.5 Hz
Answer» C. 0.33 Hz
Discussion
2.

Consider a Miller integrator with a time constant of 1ms and an input resistance of 10 k . Let the op amp have VOS (offset voltage) = 2 mV and output saturation voltages of 12 V. Select the largest possible value for a feedback resistor RF so that at least 10 V of output signal swing remains available.

A. 10 k
B. 100 k
C. 1 M
D. 10 M
Answer» E.
Discussion
3.

Consider a Miller integrator with a time constant of 1ms and an input resistance of 10 k . Let the op amp have VOS (offset voltage) = 2 mV and output saturation voltages of 12 V. Assuming that when the power supply is turned on the capacitor voltage is zero, how long does it take for the amplifier to saturate?

A. 3s
B. 6s
C. 9s
D. 12s
Answer» C. 9s
Discussion
4.

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.

A. 0.1 mV
B. 1 mV
C. 10 mV
D. 100 mV
Answer» E.
Discussion
5.

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. If the effect of VOs(input offset voltage) is nulled at room temperature (250C). 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?

A. 8.5 mV
B. 9 mV
C. 9.5 mV
D. 10 mV
Answer» D. 10 mV
Discussion
6.

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. If the effect of VOs(input offset voltage) is nulled at room temperature (250C), how large an input can one now apply if the circuit is to operate at a constant temperature?

A. 8.5 mV
B. 9 mV
C. 9.5 mV
D. 10 mV
Answer» E.
Discussion
7.

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?

A. 7 mV
B. 10 mV
C. 13 mV
D. 9mV
Answer» B. 10 mV
Discussion