List of top Questions asked in CUET (PG)

Assertion (A): Skin depth is the depth by which electromagnetic wave is attenuated to $1/e$ of its original value. Reason (R): Depth of penetration decreases with increasing wavelength.

Consider the statements given below: A. Discrete-time LTI system with impulse response $h[n] = \left(\frac{1}{2}\right)^n u[n-1]$ is causal B. Response $(-2)^n u[n]$ may or may not be stable C. Response $(-2)^n u[n]$ is unstable D. Response $(-2)^n u[-n-1]$ is unstable

Evaluate: $\lim_{x \to 0} \frac{e^{3x}+x^2}{3x-5x^2}$}

The general solution of the differential equation $y'' + 4y' + 4y = 0$ is:

Arrange the steps of classic 4-stage instruction pipelining: A. Execute B. Fetch C. Write-back D. Decode

Arrange the following modulation schemes in increasing order of bits/symbol: A. 16-QAM B. 8-PSK C. QPSK D. BPSK

Assertion (A): All stereo broadcasting uses quadrature carrier multiplexing (QAM). Reason (R): QAM involves more stringent synchronization than FM system with 558 subcarrier modulation.

If a $3 \times 3$ matrix $A$ has eigenvalues $2, 3, -4$, find $\det(A)$.

A minimum phase unity feedback system has slope $-20\,dB/decade$ for all frequencies. The value of maximum phase margin is:

Consider the following flags of 8085 affected by the instruction SUB B: A. Sign flag B. Carry flag C. Zero flag D. Parity flag

In a superheterodyne receiver arrange the following components sequentially from input to output: A. Antenna B. Mixer C. IF amplifier D. Audio amplifier

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.

Which of the following theorems are used to simplify a linear circuit into an equivalent form with a single source and impedance? A. Thevenin's theorem B. Norton's theorem C. Superposition theorem D. Reciprocity theorem

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

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.

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

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): 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.

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.