UGC NET 2022 Paper 2 Electronic Science Prev Year Paper (29-Sep-2022) (Shift 1)

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UGC NET 2022 Paper 2 Electronic Science exam, held on 29-Sep-2022 (Shift 1), consisted of 100 questions designed to assess candidates' understanding of key concepts in electronics and communication. The paper covered a wide range of topics including digital electronics, analog circuits, electromagnetic theory, microprocessors, control systems, and communication systems. Candidates were tested on both theoretical knowledge and practical applications of electronic science principles.

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UGC NET 2022 Paper 2 Electronic Science Prev Year Paper (29-Sep-2022) (Shift 1)

120 Minutes

100 Questions

200 Marks

English

Showing 1 - 5 of 100 questions

Page 1 of 20

Q1.

In a MOSFET, the transconductance in linear region ean be expressed as:

\(\rm\frac{\mu_0 C_{0}xW}{L}\) (V _G− V _T)

\(\rm\frac{\mu_0 C_{0}xW}{2L}\) (V _G− V _T)V _D

\(\rm\frac{\mu_0 C_{0}xW}{L}\) V_D

\(\rm\frac{\mu_0 C_{0}xL}{W}\) (V _G− V _T)

Q2.

In a junction field effect transistor the depletion layer width at a distance x from the source is:

[2ϵ _S[V(x) + V _G+ V _bt]/qN _D] ^1/2

\(\rm\left[\frac{V(x)+V_G+V_{bt}}{2 \epsilon_s qN_D}\right]^{1 / 2}\)

\(\rm\frac{q N_D}{2 \epsilon_s}\) (V(x) + V _bt)^1/2

[2ϵ _s[V(x) + V _bt]/qN _D] ^1/2

Q3.

The equivalent circuit of Tunnel diode is shown in the following Figure. The resistive cut off frequency is given by:

\(\rm\frac{1}{2 \pi} \sqrt{\frac{R}{Rs}-1}\)

\(\rm\frac{1}{2 \pi RC} \sqrt{\frac{R}{Rs}−1}\)

\(\rm\frac{1}{2 \pi R C} \sqrt{\frac{R s}{R}}\)

\(\rm\frac{1}{2 \pi R C} \sqrt{\frac{Rs}{R}−1}\)

Q4.

An abrupt p-n junction in thermal equilibrium is shown in Fig. The built in potential V _btis given as:

qV n + qV p

E g − (qV n + qV p )

E g + (qV n + qV p )

E g − (qV n − qV p )

Q5.

For a thermally grown silicon dioxide layer, in a MOSFET, the leakage current between the gate and channel is:

Very small

Large

Very large

⋯

Page 1 of 20

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