List of top Questions asked in CUET (PG)

Consider the following statements: A. The intrinsic concentration of carriers is independent of temperature B. Current due to carrier drift occurs in both semiconductor and metals C. Current due to carrier diffusion exists in both semiconductor and metals D. Metals are unipolar while semiconductors have bipolar nature

Assertion (A): Gallium arsenide is a direct band semiconductor having faster switching capabilities and high temperature operating capabilities. Reason (R): A substance for which the forbidden energy region is relatively small is called a semiconductor.

Assertion (A): 8-bit PCM system performs better than 4-bit PCM system. Reason (R): 8-bit system produces smaller quantization noise than 4-bit system.

Carson’s rule for estimating the bandwidth (B) of an FM signal is:

The steady-state error of a Type 1 system for a unit step input is:

Assertion (A): A network in which circuit elements like resistance, inductance and capacitance cannot be physically separated or analysis purpose is called lumped network. Reason (R): Most of the electric network are lumped in nature.

Which of the following are listed as types of compensators for system design? A. Lead compensators B. Stepper motors C. Lag compensators D. Servo valves

Assertion (A): The ability of a differential amplifier to reject a differential mode signal is called its figure of merit. Reason (R): The ideal value of figure of merit of a differential amplifier is infinite.

For maximum power transfer in an AC circuit, the load impedance $Z_L$ should be:

The noise at the input of an ideal frequency detector is white, the power spectral density of the noise at the output is:

The signal $x(t) = A\cos(\omega t + \phi)$ is:

Assertion (A): FET is a majority carrier device whereas BJT works based on movement of both majority and minority carriers. Reason (R): Thermal runaway occurs in FET circuits but does not occur in BJT circuits.

For an Op-amp, CMRR = $10^5$ and differential gain = $10^6$, what is the common mode gain of the Op-amp?

In a Quadrature Amplitude Modulation (QAM) scheme, information is encoded in:

If a fair coin is tossed 4 times, what is the probability that two heads and two tails will result?

Assertion (A): Feedback control systems offer more accurate control over open-loop systems. Reason (R): Feedback establishes a link for input-output comparison and correction.

According to Nyquist stability criterion, the number of unstable closed-loop poles (Z) is equal to:

A source generates symbols with probabilities (0.5, 0.25, 0.25) at a rate of 300 symbols per second. The most efficient source encoder would have average bit rate:

Which of the following theorems from calculus relate an integral over a region to an integral over its boundary? A. Stoke’s theorem B. Gauss’s divergence theorem C. Mean value theorem D. Taylor series

Arrange correct sequence of time domain specifications of a second order system in ascending order of values: A. Rise time B. Settling time C. Delay time D. Peak time

The Nyquist sampling theorem states that for a signal with maximum frequency $f_m$, the sampling frequency must be:

Port 80 is used for:

Which of the following are fundamental concepts from Shannon's information theory? A. Entropy B. Matched filter receiver C. Auto correlation D. Channel capacity theorem

Arrange these concepts in the logical flow from fundamental laws to wave propagation: A. Wave equation B. Maxwell's equations C. Boundary conditions D. Poynting vector

A Zener diode is primarily used for: