## SUMMARY OF SUBJECT

**1.0 UNIT ASSOCIATED WITH BASIC ELECTRICAL QUANTITIES**

SI units, charges, force, work, power, electrical potential and e.m.f., resistance and conductance, electrical power and energy, summary of terms, unit and their symbols.

**2.0 CELLS AND BATTERIES**

General features of batteries, Primary and secondary cells, series and parallel cells; current drain depends on load resistance, internal resistance of a generator.

**3.0 INTRODUCTION TO ELECTRIC CIRCUIT**

Standard symbols for electrical components, electric current and quantity of electricity, potential difference, resistance and resistivity, Ohm’s law, series circuit – equivalent series resistance and the voltage divider, parallel circuit – equivalent parallel resistance and the current divider. Combination of series and parallel circuits. Introduction to Delta–Star transformation. Electrical power and energy, main effects of electric current.

**4.0 DC EQUIVALENT CIRCUIT AND NETWORK THEOREMS**

Introduction to methods of analysis for resistive circuits, node and mesh, Kirchoff’s Current Law and Kirchoff’s Voltage Law, Thevenin’s Theorem, Norton’s Theorem, Superposition Theorem, Maximum Power Transfer Theorem.

**5.0 CAPACITORS AND CAPACITANCE**

Capacitance, capacitor construction, capacitance equivalent circuits for series and parallel connections, energy storage, capacitor current, single Capacitor DC-excited circuits.

**6.0 INDUCTORS AND INDUCTANCE**

Inductance, inductor construction, inductance equivalent circuits for series and parallel connections, inductor voltage and current relation, energy storage, single-inductor DC-Excited circuits.

**7.0 MAGNETIC CIRCUIT, ELECTROMAGNETISM AND ELECTROMAGNETIC INDUCTION**

Magnetic fields, magnetic flux, flux density, magneto motive force, magnetic field strength, permeability, b-h curve, reluctance, composite series magnetic circuit, comparison between electrical and magnetic quantities, hysteresis.Magnetic field due to electric current, electromagnets, introduction to electromagnetic induction, laws of electromagnetic induction