Скачать или смотреть UPPSC AE PYQ paper -1;2021 Electrical engineering,for UPPSC POLYTECHNIC COLLEGE LECTURERS part 3

This video, titled "UPPSC AE PYQ paper -1 ,2021 Electrical engineering," is the second part of a solution series for the Electrical Engineering Paper 1 of the 2021 UPPSC AE exam (0:00). It covers questions from 51 to 76 (0:54), providing detailed solutions and explanations for various electrical engineering concepts. The content is also highlighted as beneficial for other competitive exams like the UPPSC Polytechnic College Lecturer and State AE exams (1:08).

Key topics and problems discussed in the video include:
The condition for reciprocity in a two-port transmission network (1:46).
Determining the stability of a system represented in state variable form using characteristic equations (2:32).
Calculating the approximate length of a lossless overhead EHV line (6:54).
Matching time functions with their Laplace transforms (9:10).
Analyzing system stability and controllability based on given matrices (9:48).
Finding the average value of a complex current wave (12:42).
Calculating the ID for an N-channel Junction Field-Effect Transistor (JFET) (13:06).
Determining the characteristic impedance of a high-frequency transmission line (14:07).
The inverse Fourier transform of Delta Omega (14:52).
Calculating the minimum input voltage for BJT saturation in an NPN common emitter configuration (15:08).
Explaining the delta-star conversion for resistances (18:03).
Deriving the loss tangent for a lossy capacitor (19:33).
Discussing the applicability of Kirchhoff's Current Law (KCL) and Kirchhoff's Voltage Law (KVL) to both AC and DC circuits (20:51).
Understanding the gain margin from a Nyquist plot (21:13).
Identifying incorrect statements regarding boundary conditions during a phase-to-phase fault (22:20).
Deriving the frequency of the power wave associated with an electromagnetic wave (23:42).
The purpose of transposing transmission lines (25:43).
Calculating the voltage reflection coefficient for a short-circuit line (26:04).
Calculating the sag for a transmission line (26:42).
Defining the conditions for a distortionless transmission line (28:43).
Calculating transfer admittance (30:15).
Identifying the variables specified at a slack bus in a load flow study (30:58).
Finding the roots of the characteristic equation from a system matrix (32:02).
Determining the range of 'k' for system stability using the Routh-Hurwitz criterion (32:58).
Explaining the implications of a pole at infinity in the first Cauer network form (34:54).

The video concludes by mentioning that the next part will cover questions 77 to 125 (36:29).