Basic Electrical and Electronics Engineering Lab

The Electrical Engineering Laboratory (Lab 4013) is the first-year foundation laboratory of the department.

It provides hands-on exposure to the fundamentals of electrical and electronics engineering to first-year B.Tech students of all branches, through two courses of 1 credit each (L–T–P–J: 0–0–2–0): BEEG 0800 for non-Computer Science branches and BEEG 1800 for Computer Science branches.

Students verify network theorems, study resonance, characterise semiconductor devices, build rectifier and wave-shaping circuits, and learn to use measuring instruments such as the CRO/DSO, function generator, multimeter and energy meter. Each course combines hardware experiments with software simulation using MATLAB/PSpice/PSIM, so that students can compare measured results with theory and simulation.

Course focus: Employability. Learning outcomes: on completion, students are able to (i) implement basic electric and electronic circuits using rheostats, bread-boards, resistors, capacitors, inductors, diodes, transistors, voltage sources, ICs, transformers, DSO/CRO and measuring devices, and (ii) measure electrical quantities such as voltage, current, frequency, power and energy.

List of Major Equipment

Regulated DC power supplies (0–30 V, 2 A; dual supplies)
Function generators (0–3 MHz)
Cathode Ray Oscilloscopes (20–25 MHz) / DSO with probes
PMMC ammeters, milli-ammeters, micro-ammeters and voltmeters
Digital multimeters
Rheostats (0–30 Ω, 0–200 Ω and other ranges)
R-L-C circuit kits (resistor, inductor, capacitor elements)
Semiconductor diodes, BJTs and MOSFETs with trainer/bread-board kits
Centre-tapped / step-down transformers (230/15-0-15 V)
Single-phase induction-type energy meter and digital energy meter
Logic gate trainer kits and ICs
Bread-boards, resistors, capacitors, connecting wires and probes
Computer systems with MATLAB / PSpice / PSIM

List of Experiments

A. BEEG 0800 – Electrical Engineering Lab (non-CS branches)

Hardware-based experiments

To verify Thevenin’s theorem (DC circuits)
To verify the maximum power transfer theorem (DC circuits) and draw the graph between power and load resistance
To study resonance in a series R-L-C circuit and draw the graph between frequency and current
To determine the V-I characteristics of a semiconductor diode; calculate forward and reverse static and dynamic resistances
To study the working of half-wave and full-wave (bridge) rectifiers and determine the ripple factor
To determine the efficiency of a single-phase transformer by direct loading test and draw the graph between load and efficiency
To study the applications of CRO (voltage, current and frequency measurement)
To study a single-phase induction-type energy meter and calibrate it with a digital energy meter
To study various logic gates (OR, AND, NOT, NAND, NOR)
To verify the Superposition theorem (DC circuits)

Software-based experiments (MATLAB/PSIM/PSpice)

To verify Thevenin’s theorem
To verify the maximum power transfer theorem
To study resonance in a series R-L-C circuit and draw the graph between frequency and current
Half-wave and full-wave (bridge) rectifiers with ripple factor – resistive load
Half-wave and full-wave (bridge) rectifiers with ripple factor – inductive load
To verify the Superposition theorem

B. BEEG 1800 – Electrical and Electronics Engineering Lab (CS branches)

Hardware-based experiments

To verify Thevenin’s theorem (DC circuits)
To verify the maximum power transfer theorem (DC circuits) and draw the graph between power and load resistance
To verify the Superposition theorem (DC circuits)
To study resonance in a series R-L-C circuit and draw the graph between frequency and current
Study of CRO and measurement of voltage and frequency using CRO
Realization and analysis of the V-I characteristic of a PN junction diode
Realization and analysis of the bridge-type full-wave rectifier
Realization and analysis of clipper and clamper circuits
Realization and analysis of input and output characteristics of a common-emitter BJT
Realization and analysis of drain and transfer characteristics of an enhancement-type n-channel MOSFET

Software-based experiments (MATLAB/PSpice)

To verify Thevenin’s theorem
To verify the maximum power transfer theorem
To study resonance in a series R-L-C circuit and draw the graph between frequency and current
Full-wave (bridge) rectifier and ripple factor for resistive load
To verify the Superposition theorem
Input and output characteristics of a common-emitter BJT

Skills developed

Building and testing electrical and electronic circuits on hardware
Using CRO/DSO, function generators, multimeters and energy meters
Circuit simulation and result comparison with theory
Safe laboratory practice, observation recording and technical reporting
Students maintain a lab manual with pre- and post-experiment questions, observations, results and precautions for each experiment