List of top Physics Questions on Electronic devices asked in CUET (UG)

Given below are V versus I graphs for different types of p-n junction diodes marked A, B, C, and D.
Graphs
The correct sequence of graphs corresponding to forward biased p-n junction; Zener
diode; Photo diode and Solar cell in order is _________.
Fill in the blank with the correct answer from the options given below.
An a.c. circuit contains a 4 Ω resistance wire in series with an inductance coil of reactance 3 Ω. The impedance of the circuit is:
The figure below shows a part of an electric circuit. The current marked IA​ is:
Problem fig
The potentials are applied to the four p-n junctions as shown below. The forward biased p-n junctions are:
p-n junction

A pure silicon crystal with 5 × 1028 atoms m−3 has ni = 1.5 × 1016 m−3. It is doped with a concentration of 1 in 105 pentavalent atoms, the number density of holes (per m3) in the doped semiconductor will be:

Silicon can be doped using one of the following elements as dopant:
(A) Arsenic
(B) Indium
(C) Phosphorus
(D) Boron.
To get an n-type semiconductor, the dopants that can be used are______.
Fill in the blank with the correct answer from the options given below.
In a p-type semiconductor, the acceptor level is situated 50 meV above the valence band. The maximum wavelength of light required to produce a hole will be:
For a full wave rectifier, if the input frequency is 50 Hz, the output frequency will be_____
Fill in the blank with the correct answer from the options given below.