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Fundamental of Electronics Engineering — Minor 1 2026 question paper

MMMUT Electronics and Communication Engineering previous year question paper for Fundamental of Electronics Engineering (BEC 151), semester 2, Minor 1 2026. All 6 questions are listed below, each with a written answer on Nexsus.

Paper details

  • Subject: Fundamental of Electronics Engineering (BEC 151)
  • Branch: Electronics and Communication Engineering
  • Semester: 2
  • Exam: Minor 1 2026
  • Questions: 6

Questions asked in Fundamental of Electronics Engineering Minor 1 2026

  1. Q1. Attempt any two parts of the following: Q1(a) is compulsory. [5 marks]
  2. Q1(a). Write short notes on intrinsic and extrinsic semiconductor. Find, (i) the conductivity and (ii) resistance of a bar of pure silicon of length 2cm and cross section area 2mm^2 at 300K. Given μ_a=0.14m^2/v.s, μ_p=0.04m^2/v.s, η=1.5×10^16/m^3 and e=1.6×10^-19C [3 marks]
  3. Q1(b). Derive the expressions for the following parameters of the full wave rectifier circuits: i. Average d.c. current I_DC and Average d.c. voltage V_DC ii. R.M.S. value of current I_RMS iii. D.C. Power output P_DC iv. Ripple factor and ripple efficiency. [2 marks]
  4. Q1(c). What is the function of a clamper circuit? Draw the circuit diagram of a diode clipper that limits the positive peak of the input voltage. Explain how the circuit works. [2 marks]
  5. Q2. Attempt any two parts of the following: Q2(a) is compulsory. [5 marks]
  6. Q2(a). Define the current amplification factor in CC, CE, and CB mode of configuration. Derive the relation between a(αβ), b(βγ) & c