List of top Nanoelectronics Questions

The VSWR can have any value between :

Arrange the following logic families in the order of increasing power dissipation : A. CMOS B. RTL C. TTL D. ECL Choose the correct answer from the options given below :

Consider the Boolean function : \[ F=A+\bar{B}C \] Choose the correct minterm of given function : A. \(1,4 \text{ and } 6\) B. \(5 \text{ and } 7\) C. \(2,3 \text{ and } 7\) D. \(1,2,3 \text{ and } 4\) Choose the correct answer from the options given below :

Choose the correct sequence of steps in state variable method. A. Choose state variables B. Write state equations C. Write matrix model D. Form output equations Choose the correct answer from the options given below :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The Kirchhoff's current law states that sum of currents entering at any node is equal to the sum of currents leaving that node. Reason (R): The Kirchhoff's current law is based on the law of conservation of charge. In the light of the above statements, choose the most appropriate answer from the options given below :

Sequence of steps for Boolean function simplification using K-map : A. Write truth table B. Plot minterms on K-map C. Group adjacent 1's D. Write simplified equation Choose the correct answer from the options given below :

DSB-SC signals are generated using:

A Delta-connected network with its Wye-equivalent is shown in the figure. The values of resistances \(R_1\), \(R_2\) and \(R_3\) (in \(\Omega\)) are respectively.

The voltage \(V\) in the given figure is equal to :

A signal \(x(t)\) is given below : \[ x(t)=\left(\frac{3}{2}\right)\cos(190\times10^3\pi t)+5\cos(200\times10^3\pi t)+\left(\frac{1}{2}\right)\cos(210\times10^3\pi t) \] What is the power efficiency in the AM signal?

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Master-slave J-K flip-flop is free from race around condition. Reason (R): Master-slave uses two J-K flip-flops. In the light of the above statements, choose the most appropriate answer from the options given below :

Which of the following statements are correct A. A negative feedback can increase linearity and reduce distortion. B. Positive feedback always improves stability of the amplifier. C. Series-shunt (voltage) negative feedback tends to reduce output impedance. D. Closed-loop bandwidth typically increases when negative feedback is applied. Choose the correct answer from the options given below :

In an op-amp which of the following parameters depend on frequency. A. Voltage gain B. Noise current C. CMRR D. Output voltage swing E. Gain bandwidth product Choose the correct answer from the options given below :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The gate of a MOSFET is insulated from body of FET by deposition of a very thin fragile layer of \(SiO_2\) over the substrate. Reason (R): The device is therefore called an insulated gate field-effect transistor (IGFET). In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The body effect in MOSFET causes the threshold voltage \(V_{th}\) to increase as source-body voltage \(V_{SB}\) increases. Reason (R): Increasing \(V_{SB}\) resets the surface potential and therefore reduces the barrier for inversion. In the light of the above statements, choose the most appropriate answer from the options given below :

What is the typical efficiency of half-wave rectifier?

The sequence of physical events when forward bias is applied to PN junction: A. Barrier potential reduces B. Majority carriers injected across junction C. Recombination in neutral regions increases D. Diffusion current established across quasi-neutral regions E. Net forward current increases Choose the correct answer from the options given below :

Sequence for standard n-well fabrication process is : A. Passivation B. n-well implant C. Metallization D. Source/drain diffusion Choose the correct answer from the options given below :

For the given emitter-bias network, determine the values of \(I_C\) and \(V_{CE}\). Assume \(\beta =100\).

For an op-amp having a slew rate of \(4 \text{ V}/\mu s\), what is the maximum closed-loop voltage gain that can be used when input signal varies by \(0.1V\) in \(10\mu s\)?

Calculate the output voltage of an op-amp for input voltages of \(V_{i1}=150\mu V\) and \(V_{i2}=140\mu V\). The amplifier has a differential gain of \(A_d=4000\) and the value of CMRR is \(100\):

For the series diode configuration of the given figure, determine \(V_D\) and \(I_D\).