Understanding the basic terms used in electrical engineering such as voltage, current, resistance, resistivity, conductance, conductivity, work, power and energy etc.

Relation between voltage, current and resistance: Ohm’s law

Study of good conductors, bad conductors, insulators, leakage current and insulation resistance.

Study of effect of temperature and moisture on resistance of conductor and insulator.

Meaning of the analysis of electrical circuit

Nature of voltage and current in circuit (graphical representation)

Study of Kirchoff’s current and voltage law, D.C. series and parallel circuits and their simplifications.

Study of star-delta and delta-star transformations and their application in the simplification of D.C. circuits.

Understanding the generation of alternating voltage. Study of the representation of an A. C. voltage and current as a sine wave.

Meaning of average value, effective value of an A. C. current, form factor and peak factor of an A. C. quantity.

Rules for addition and subtraction of A. C. quantities. Introduction to the concept of phasor diagram.

Analysis of an A. C. circuit- A. C. current flowing through pure resistance, Inductance and capacitance. Concept of power factor and true power in an A. C. circuit.

Calculation of power factor and true power in simple A. C. circuits involving series R-C and R-L circuits. Concept of capacitive and inductive reactance.

Introduction to the magnet, its types, methods of preparation. Classification magnetic materials.

Understanding the basic terms used in magnetism like m.m.f., magnetic flux, flux density, reluctance, etc.

Study of right hand rule, cork screw rule, Fleming’s right hand rule, Lenz’s law.

Faraday’s laws of electromagnetic induction. Self-inductance and mutual inductance. B-H curve, magnetic hysteresis and hysteresis loop.

Lesson No 5: Single Phase Transformer.
Theory.

Working, principle of single-phase transformer. Construction details viz. shell type and core type.

Formulae of e.m.f., voltage and current ratios. Construction and working of step up and step down transformer.

Effect of load on transformer and transformer regulation, various losses in transformer, efficiency of transformer, rating of transformer.

Autotransformer and its applications.

Lesson No 6: Three Phase A.C. circuits.
Theory.

Understanding of generation of three-phase A. C. voltage and current. Sinusoidal representation of three-phase A. C. quantities and their phase sequence.

Load connection methods in three-phase A. C. circuits- star and delta and their applications. Concept of line, phase voltage and current.

True power measurement in three-phase star and delta circuits.

Definition of prime mover, Different sources of power-Fuel, water, nuclear energy, wind solar energy, geothermal energy and tidal energy.

Introduction to different types of prime movers- thermal, hydraulic, electric and pneumatic.

Working of I.C. engines advantages and disadvantages.

Power transmission and need of mechanical drives.

Methods of drives- group drive or common drive and individual drive their advantages and disadvantages.

Different types of mechanical drives used for power transmission like couplings, belts, ropes, chains, clutches and gears.

Study of the different characteristics of gear drives- circular pitch, addendum, dedendum, pith circle, velocity ratio.

Definition of friction. Types of friction- static, kinetic, rolling.

Coefficient of friction, angle of repose. Laws of static & kinetic friction.

Definition and function of lubricant. Different types of lubrication- fluid film, boundary, extreme-pressure.

Classification of lubricants- liquid, semi-solid, solid.

Lubricating systems- gravity-feed, force feed.
Semiautomatic lubricating devices-bottle, or needle oiler, capped grease cup for gravity feed, bottom-feed wick oiler, slight gravity-feed oiler, siphon-type oiler, pad oiler.

Lesson No 5: Hydraulics.
Theory.

Definition of hydraulics, underlying principle- Pascal's law.

Understanding the basic terms used in hydraulics such as work, horse power, mechanical advantage.

General hydraulic system and its components- fluid, reservoir, filters, strainer, pipings, valves, cylinder,