Electronics plays a major role in almost every sphere of our life-our homes, factories, offices, banks, shops and hospitals. It is being used more and more in entertainment, communication, defence, industrial sector, medical sciences, instrumentation etc. Its importance increases with every advance in technology and with the urge to computerise human tasks and industrial processes.

Electronics is a fast changing area and a thorough grounding in the subject fundamentals is absolutely necessary. This course covers areas like basic electrical circuits, linear integrated circuits and digital electronics in detail. This course will also give you a feel for the exciting applications of modem electronics. IGNOU has made efforts to develop in student's application skills required for a career in electronics.

This course will help you in the study of the hardware aspects of computers and other complex digital systems.

## Syllabus per Block Divisions in IGNOU BSc Physics -Electrical Circuits and Electronics PHE-10

### Block 1: Network Analysis and Devices

**Unit 1:**Circuit Analysis**Unit 2:**DC and AC Circuits**Unit 3:**Electron Devices

### Block 2: Electronic Circuits

**Unit 4:**Amplifiers**Unit 5:**Oscillators**Unit 6:**Power Supply

### Block 3: Linear Integrated Circuits

**Unit 7:**The Operational Amplifier**Unit 8:**Applications of Operational Amplifier**Unit 9:**Linear IC-Amplifier and Voltage Regulator

### Block 4: Digital Electronics

**Unit 10:**Number System and Codes**Unit 11:**Fundamentals of Boolean Algebra and Flip-Flops**Unit 12:**Counter Register, Memory Circuit and Analog / Digital Circuit**Unit 13:**Electronic Instruments

## Detailed Syllabus for IGNOU BSc Physics -Electrical Circuits and Electronics PHE-10

Network Analysis: Circuit Elements; Kirchoff's Laws, Nodal Equations, T-and pi-Networks, Network Theorems: Superposition Theorem, Thevenin Theorem, Norton's Theorem, Maximum Power Transfer Theorem; DC and AC Circuits, Attenuators, Filters (High Pass, Low Pass, Band Pass), Series and Parallel Resonant Circuits, Impedance Matching.

Devices and Instruments: Vacuum Tubes, Semiconductor Devices: Diodes (Detector, Rectifier, Voltage Reference); Zener Diodes, Transistors (Junction Transistor, FET, MOSFET); Equivalent Circuits of Transistors, Operating Point and Bias Stability, Small Signal Low Frequency Amplifiers (Gain Bandwidth), Input-Output Impedances; Large Signal Amplifiers: Power Amplifiers, (Class A, B, C, AB), Push-Pull Amplifier, Radio Frequency Amplifiers (Single-Tuned and Double Tuned); Feedback, Negative Feedback, its Effect on Amplifier Performance; Positive Feedback and Oscillators, Classification of Oscillators; LC Oscillators: Tuned Collector, Hartley and Colpitts Oscillators; RC Oscillators: Phase-Shift Oscillator, Wein Bridge Oscillator; Unregulated Power Supplies, Transformers, Rectifiers and Filters, Ripple Factor, Load Line Regulation, Regulated Power Supply.

Operational Amplifiers and their Characteristics; Op-Amp as a Comparator; Inverting and Non-Inverting Amplifier; Op-Amp as an Inverting Adder, Basic Differentiator and Integrator; Feedback in Op-Amp; Integrated Circuits: Power Amplifier ICs, Voltage Regulator ICs.

Digital Electronics: Binary Arithmetic, Decimal, Octal and Hexadecimal Number Systems and Interconversions, BCD and ASCII Codes, Boolean Algebra, Logic Gates, Adder Flip Flops (RS, D, JK); Counters, Registers, Semiconducting Memories (RAM, ROM), A/D and D/A Converters (only Functional Description); Cathode Ray Oscilloscope, Signal Generators, Electronic Voltmeter, Power Meter, Magnetic Field Meter.