EE Unit 2 Notes AKTU (BEE101)

AKTU · BTECH · Semester 1, 2 · Fundamentals of Electrical Engineering · Unit 2 · Notes

AKTU Fundamentals of Electrical Engineering (BEE101) Unit 2 notes for B.Tech Semester 1/2 – Steady State Analysis of Single Phase AC Circuits. Topics: AC…

Open the interactive reader to study this resource on AcademicArk.

Unit 2: Steady State Analysis of Single Phase AC Circuits – AKTU syllabus topics

  • AC Waveform Fundamentals: Average RMS Form Peak Factors, Sinusoidal Waveform Representation
  • Single Phase RLC Circuits: Series RLC Circuit Analysis, Parallel RLC Circuit Analysis
  • AC Power and Power Factor: Apparent Active Reactive Power, Power Factor
  • Resonance in AC Circuits: Series Resonance, Parallel Resonance, Bandwidth and Quality Factor
  • Three Phase Balanced Circuits: Star Connection, Delta Connection

Most asked AKTU PYQ questions from Unit 2

  1. Q2b. Consider the tank circuit shown and calculate: (a) Resonant frequencies ω(rad/s) and f(Hz). (b) Q of the circuit at resonance. (c) Voltage across the circuit at resonance. (d) Currents through the inductor and resistor at resonance. (10 marks, 2021-22)
  2. Q4a. Derive mathematically dynamic impedance (ZD) offered by RLC parallel circuit under resonance. Also, draw its phasor diagram. (10 marks, 2021-22)
  3. Q4b. Two coils having resistance 5Ω and 10Ω and inductances 0.04H and 0.05H respectively are connected in parallel across a 200V, 50Hz supply. Calculate: (i) Conductance, susceptance and admittance of each coil. (ii) Total current and power factor. (iii) Power absorbed. (10 marks, 2021-22)
  4. Q1d. Why the average power consumed in purely inductive circuit is zero? (2 marks, 2021-22)
  5. Q4a. A series R-L-C circuit consists of R = 1000Ω, L = 100mH and C = 10µF. The applied voltage is 100V. (i) Find the resonant frequency. (ii) Find the quality factor at resonant frequency. (iii) At what angular frequencies do the half power points occur? (iv) Calculate the bandwidth. (10 marks, 2021-22)
  6. Q4b. Three impedances of (70.7+j70.7)Ω, (120+j160)Ω and (120+j90)Ω are connected in parallel across a 250V supply. Determine (i) admittance of the circuit (ii) supply current and (iii) circuit power factor. (10 marks, 2021-22)
  7. Q2b. A resistance of 75Ω, an inductance of 0.35H and a capacitance of 150μF are connected in series across a 230V, 50Hz supply. Calculate (i) the resultant current (ii) the phase angle between the resultant current and the supply voltage (iii) power factor of the circuit. (7 marks, 2025-26)
  8. Q4a. What is meant by bandwidth of a resonant circuit? Draw the resonance curve of a series RLC circuit and prove the bandwidth is ω₂ - ω₁ = R/L. (7 marks, 2025-26)
  9. Q4b. Derive the relation between Phase Voltage & Line voltage for Star connected three phase supply system. A 3 phase, 400-volt supply is connected to a 3 phase star connected balanced load. The line current is 20 amps and the power consumed by the load is 12 KW. Calculate the phase impedance of the… (7 marks, 2025-26)
  10. Q2b. Derive the equation for resonant frequency in the case of a series RLC circuit draw the phasor diagram of resultant Voltage and Current in circuit in resonant condition. (7 marks, 2024-25)

AKTU paper codes: BEE101, BEE201, KEE101, KEE201

Other Fundamentals of Electrical Engineering units

Fundamentals of Electrical Engineering previous year papers

More Fundamentals of Electrical Engineering resources

Browse all notes · Semester 1 notes