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Basic Electrical Engineering — Major (End Semester) 2026 question paper

MMMUT Information Technology previous year question paper for Basic Electrical Engineering (BEE-160), semester 2, Major (End Semester) 2026. All 24 questions are listed below, each with a written answer on Nexsus.

Paper details

  • Subject: Basic Electrical Engineering (BEE-160)
  • Branch: Information Technology
  • Semester: 2
  • Exam: Major (End Semester) 2026
  • Questions: 24

Questions asked in Basic Electrical Engineering Major (End Semester) 2026

  1. Q1. Attempt any five parts of the following. (Unit I & II)
  2. Q1(a). Explain the concept of linearity with regard to circuits. [2 marks]
  3. Q1(b). State the conditions under which Superposition Theorem can be applied effectively. [2 marks]
  4. Q1(c). Why are three-phase systems preferred over single-phase systems for power transmission? Give any two reasons. [2 marks]
  5. Q1(d). A three-phase balanced Y-load draws 5.6 kW when the line voltage is 220 V and the line current is 18.2 A. Determine the power factor of the load. [2 marks]
  6. Q1(e). Find Thevenin's equivalent circuit to the left of the terminals a-b in the 12 circuit shown. Then find I. [2 marks]
  7. Q1(f). A coil having an inductance of 50 mH and resistance 10 Ω is connected in series with a 25 µF capacitor across a 200 V supply. Calculate (a) resonance frequency, (b) current flowing at resonance and (c) quality factor. [2 marks]
  8. Q1(g). Find the power delivered to an element at t = 3 ms if the current i entering its positive terminal is 5 cos 60πt A and the voltage is v = 3 di/dt. [2 marks]
  9. Q2. Attempt any two parts of the following. (Unit III)
  10. Q2(a). The expected value of voltage across a resistor is 85'V and the measured value is 82 V. What is the absolute error, relative error and percentage error in this measurement. [5 marks]
  11. Q2(b). Explain the following torques developed in measuring instruments: (i) Deflecting torque (ii) Controlling torque and (iii) Damping torque. [5 marks]
  12. Q2(c). Describe the constructional details of a PMMC type instrument with the help of a neat diagram. Also explain its working principle. [5 marks]
  13. Q3. Attempt any two parts of the following. (Unit III)
  14. Q3(a). Describe the construction and operating principles of attraction-type and repulsion-type moving iron instruments. [5 marks]
  15. Q3(b). Explain the following static characteristics of Measuring Systems: (i) Accuracy, (ii) Precision, (iii) Sensitivity and (iv) Tolerance. [5 marks]
  16. Q3(c). Explain the design procedure to extend the range of an Ammeter. Use this method to design a multi-range DC Ammeter from the basic Ammeter whose internal resistance is 50 Ω and the full scale deflection current is 1 mA. The required range of measurements are: (i) 0–10 mA and (ii) 0–50 mA. [3 marks]
  17. Q4. Attempt any two parts of the following. (Unit IV)
  18. Q4(a). Explain the similarities and differences between electric circuits and magnetic circuits. [5 marks]
  19. Q4(b). An ideal transformer is rated at 2400/120 V, 9.6 kVA, and has 50 turns on the secondary side. Calculate: (i) the turns ratio, (ii) the number of turns on the primary side, and (iii) the current ratings for the primary and secondary windings. [5 marks]
  20. Q4(c). Discuss the operation of a transformer under no-load condition, with the help of its equivalent circuit and phasor diagram. [5 marks]
  21. Q5. Attempt any two parts of the following. (Unit IV)
  22. Q5(a). A single phase transformer is rated at 100 kVA, 2300/230 V, 50 Hz. The maximum flux density in the core is 1.2 Wb/m^2 and the net cross-sectional area of the core is 0.04 m^2. Determine: (i) The number of primary and secondary turns needed. (ii) If the mean length of the magnetic circuit is 2.5 m and the relative permeability is 1200, determine the magnetising current. Neglect the current drawn… [5 marks]
  23. Q5(b). Describe the open-circuit and short-circuit tests of a transformer and explain their significance in determining transformer parameters. [5 marks]
  24. Q5(c). A sinusoidal voltage applied to the primary winding of a transformer produces a sinusoidal magnetic flux linking both the primary and secondary windings. Derive the expressions for the induced EMF and show that it is 90^° out of phase with the flux. Also mention two applications of transformers. [5 marks]