List of top Questions asked in CUET (PG)- 2025

(A) Tunnel diode is a heavily doped pn junction diode that exhibits negative differential resistance.
(B) Stability factor (S) is the maximum for a voltage divider bias circuit.
(C) The operational amplifier works as a comparator circuit in open loop configuration.
(D) Biasing is done to set the quiescent point of the transistor in the middle of the DC load line.
Choose the correct statements from the options given below:

Arrange the following devices in increasing order of their input resistances:
(A) MOSFET
(B) BJT
(C) JFET
(D) PN junction diode

Following statements are given in reference to 8085 Microprocessor:
(A) Its memory size is 64 KB
(B) It is a 40-pin IC
(C) Its clock frequency lies between 3 to 5 MHz
(D) It has 16 bit of each data and address lines.
Choose the correct answer from the options given below:

(A) MOV A, C is a one-byte instruction.
(B) OUT 03 H is a two-byte instruction.
(C) ANI 76 H is a three-byte instruction.
(D) STA 3000 H is a three-byte instruction.

............ refers to the inability to faithfully repeat recorded data output when measuring a range of values and scanning from different directions.

........ is the vector address of the TRAP interrupt.

What is the word length of an 8-bit microprocessor?

Consider the following statements:
(A) Built-in potential across a diode reduces with increase in temperature.
(B) Electron concentration of n-type semiconductor equals intrinsic concentration at Curie temperature.
(C) Drain current of MOSFET is a positive temperature coefficient (PTC).
(D) Collector current of BJT has a PTC.
Choose the correct statements:

Choose the wrong option from the following for the given statement. Statement: Electric field is conservative.

Choose the correct answer from the options given below.
A. \( \vec{\nabla} \times \vec{B} = \mu_0 \vec{J} \) represents Ampere's circuital law.
B. \( \vec{\nabla} \cdot \vec{B} = 0 \) represents magnetic monopole doesn't exist experimentally.
C. \( \vec{\nabla} \times \vec{E} = 0 \) represents the conservative nature of the electric field.
D. \( \vec{\nabla} \times \vec{A} = 0 \) represents the solenoidal condition for a vector field.

Gauss's law in magnetostatics is expressed as,

If in a free space, the electric field is given as: \[ \vec{E} = 20 \cos(\omega t - 50x) \hat{y} \, \text{V/m} \] then, the expression of displacement current density \( J_d \) is:

Which of the following statements about hydrogen peroxide is INCORRECT?

In X-ray diffraction, a collimated beam of X-rays, with most appropriate wavelength ranging from .......... is incident on a specimen and is diffracted by the crystalline phases of the specimen:

........... are electromagnetic radiation with typical photon energies in the range of 100 eV to 100 keV:

Measurement of grain size by using X-ray diffraction line broadening can be done by:

Express \(v_{\text{out}}\) in terms of \(v_{\text{in}}\) for the given circuit, assuming the op-amp is ideal.

Considering the op-amp to be ideal, the \(v_{\text{out}}\) is expressed as: