Ohm’s Law-Verification of Ohm’sLaw- Kirchoff’s law-Applications of Kirchoff’s law- Wheatstone’s bridge - Metre bridge- Carey Foster’s bridge- Potentiometer- Measurement of Current and Resistance- Calibration of low range Voltmeter.

AC circuits with double components–measurement of current and voltage–power in an AC Circuit-Power Factor (derivation)- Watt less current – Choke - series and parallel resonant circuits - Impedance-Q factor-Selectivity and Sharpness of resonance.

Number Systems - Conversions - Binary: Addition, Subtraction, Multiplication, Division-8421 Code - BCD Code - Excess 3 code - Gray code - Binary to Gray and Gray to Binary Conversion - ASCII code – Basic and Derivative Gates: AND, OR, NOT, NAND, NOR, EX-OR - NAND & NOR as Universal Gates.

Basic laws of Boolean algebra - De Morgan’s theorem - Verification of Boolean expression using Boolean laws - Half-adder - Full adder - Half- Subtractor - Full subtractor (using basic gates) – Encoder - Decimal to BCD encoder- Decoder- BCD to decimal decoder.

Introduction – ROM using diodes and transistors – ROM in terms of digital circuits –Building memory of larger capacity–PROM–EPROM–EEPROM–ROM as a unit in microcomputers – RAM – Static RAM – Flip – Flop as a RAM cell – Memory expansion _Memory Parameters.