Ohm’sLaw-Verification of Ohm’s Law-Kirchoff’slaw-Applications of Kirchoff’slaw- 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)- Wattless 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 decimaldecoder.

Introduction – ROM using diodes and transistors – ROM in terms of digital circuits –Buildingmemoryoflargercapacity–PROM–EPROM–EEPROM–ROMasaunit in microcomputers – RAM – Static RAM – Flip – Flop as a RAM cell – Memory expansion _ MemoryParameters.