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ENEX 202Bachelor in Electronics, Communication and Information Engineering · Semester 31 Paper Available

Advanced Electronics

Past examination question papers and complete curriculum syllabus for Advanced Electronics (ENEX 202), Bachelor in Electronics, Communication and Information Engineering Semester 3 under Institute of Engineering (IOE), Tribhuvan University.

Sem 3 Subjects (6)View Full Semester Overview →
ENSH 201Engineering Mathematics IIIENSH 204Communication EnglishENCT 201Computer Graphics and VisualizationENEX 201MicroprocessorsENEX 202Advanced ElectronicsENEE 204Control System
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Past Question Papers (PDF)

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Note: This question paper file (4th sem) was archived from an IOE exam session for the common Advanced Electronics curriculum.

4th-sem_Advanced Electronics.pdf

IOE Past Examination Paper

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Most Frequently Asked Questions

Top recurring IOE board exam questions for Advanced Electronics with verified mark schemes, formula notation, and recurrence frequency.

Showing 40 of 40 top repeated questions
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Year-wise & Session-wise Exam Papers

Complete questions from each exam session (Regular & Back exams from 2082 to 2069) for Advanced Electronics. Click any session paper to expand.

Showing 90 questions across 6 exam session papers
Institute of Engineering • 2082 Kartik Board Examination
Q1[2 Marks]Operational Amplifier Characterization
Define input bias current and input offset voltage of an Op-amp. Derive the expression of input impedance of closed loop Op-amp configuration.
Q2[3 Marks]Operational Amplifier-Bipolar Transistor Logarithmic Amplifier
What are the advantages of transistor logarithmic amplifier then using diode? Derive output voltage expression of logarithmic amplifier using matched transistor.
Q3[6 Marks]Power Electronics
Explain RC triggering circuit of SCR with necessary figures and waveforms.
Q4[6 Marks]Power Electronics
Explain the working principle of step down dc chopper with necessary derivations.
Q5[6 Marks]Switched Mode Power Supplies and Drives
A boost regulator has an input voltage of . the average output voltage and the average load current . The switching frequency is . If and , determine a) The duty cycle b) The ripple voltage capacitor c) The ripple current of inductor d) The critical value of L and C
Q6[2 Marks]Operational Amplifier Characterization📐 Diagram in Paper
Draw the circuit diagram of BJT differential amplifier. Derive its differential and common mode voltage gain.
Q7[2 Marks]Operational Amplifier Characterization
Define slew rate of Op-amp. The inverting Op-amp with gain 50 has a slew rate of with input signal peak and . Determine whether the output will be distorted due to slew rate limitation. If so, find remedies.
Q8[2 Marks]Digital-to-Analog and Analog-to-Digital Conversion
Derive the expression for output voltage of R-2R ladder DAC (voltage mode). List out demerits of Binary weighted resistor DAC.
Q9[2 Marks]Digital-to-Analog and Analog-to-Digital Conversion
Why tracking type ADC is better than counter type ADC? Explain the operation of dual slope analog to digital converter (ADC) with necessary figures and expressions.
Q10[2 Marks]Operational Amplifier Characterization
What are the applications of isolation amplifier? Find the output voltage of single op-amp instrumentation amplifier with mismatched resistor.
Q11[2 Marks]Operational Amplifier Characterization📐 Diagram in Paper
What are the applications of log-antilog amplifiers? Draw rms detector circuit for sinusoidal waveform using log antilog amplifier and derive its output voltage.

Curriculum Syllabus & Course Topics

Sourced from TU curriculum portal
Full Syllabus (PDF)
Chapter-wise Units & Micro-Syllabus Topics (7 Units)

  1. 1. Operational Amplifier Characterization

    • 1.1Input offset voltage
    • 1.2Input bias and input offset currents
    • 1.3Output impedance
    • 1.4Differential and common-mode input impedance
    • 1.5DC gain, bandwidth, gain-bandwidth product
    • 1.6Common-mode and power supply rejection ratio
    • 1.7Higher frequency poles settling time
    • 1.8Slew rate
    • 1.9Noise in operational amplifier circuits

  2. 2. Digital-to-Analog and Analog-to-Digital Conversion

    • 2.1Performance parameters of DAC and ADC
    • 2.2Binary weighted resistor DAC
    • 2.3The R-2R ladder DAC
    • 2.4Unipolar and bipolar D/A converters
    • 2.5Count-up and tracking A/D’s based on D/A’s
    • 2.6Successive approximation A/D converters
    • 2.7Integrating voltage-to-time conversion A/D converters, dual and quad slope types
    • 2.8Sigma delta A/D converters
    • 2.9Flash A/D converters

  3. 3. Instrumentation and Isolation Amplifiers

    • 3.1One and two operational amplifier instrumentation amplifiers
    • 3.2The three operational amplifier instrumentation amplifier
    • 3.3Consideration of non-ideal properties
    • 3.4Isolation amplifier principles and realization
    • 3.5Consideration of non-ideal properties

  4. 4. Operational Amplifier-Bipolar Transistor Logarithmic Amplifier

    • 4.1The basic logarithmic amplifier
    • 4.2Non-ideal effects
    • 4.3Stability consideration
    • 4.4Anti-logarithmic operations

  5. 5. Log-Antilog Circuit Application

    • 5.1Analog multiplier based on log-antilog principles
    • 5.2The multifunction converter circuit
    • 5.3Proportional to absolute temperature (PTAT) devices
    • 5.4RMS to DC conversion

  6. 6. Power Electronics

    • 6.1Power diodes, power MOSFET V-I characteristics
    • 6.2Thyristor: V-I, turn on-off mechanism, protection schemes, firing circuits, series/parallel combination, self and forced commutation
    • 6.3Members of thyristor family: DIAC, TRIAC
    • 6.4Controlled rectifier circuits: single phase half wave and full wave with RLE load
    • 6.5Inverters: Fixed voltage variable frequency (half and full), variable voltage variable frequency (PWM inverters)
    • 6.6Choppers: Principle of operation, control strategies, step up chopper, classification of chopper circuits

  7. 7. Switched Mode Power Supplies and Drives

    • 7.1Switch mode power supply
    • 7.2Buck, boost, buck-boost regulator
    • 7.3DC drives: classification and choice of selection
    • 7.4Review of characteristics and operating modes of DC motors
    • 7.5Half wave and full wave single phase converters drives
    • 7.6Stepper motor and drives

Examination Scheme & Marks Distribution

Evaluation Structure

  • Final Board Theory Exam: 60 Marks (Pass mark: 24)
  • Internal Assessment: 40 Marks (Pass mark: 16)
  • Practical / Lab Exam: 25 or 50 Marks (Continuous lab evaluation + viva, where applicable)

* This is the general current IOE 60/40 scheme; verify course-specific details in the syllabus above.

Exam Preparation Guidelines

  • Review the available past examination paper to understand question styling, typical derivation topics, and marks allocation.
  • Practice drawing labeled circuit schematics, deriving transfer functions, and showing systematic mathematical steps.
  • Structure answers with labeled diagrams, concise bullet points, and highlight final answers in numerical solutions.
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Curriculum Syllabus & Marking Scheme