**Transient currents 7 hours Max marks 20**

Growth and decay of current in LR and CR circuits – measurement of high resistance by

leakage – growth of charge and discharge of a capacitor through LCR circuit – theory of

BG – experiment to determine charge sensitiveness of BG using a standard condenser and

HMS.

(Sections 12.1 to 12.6, 10.10 to 10.13 and section 11.14 of Electricity and magnetism by

R. Murugeshan)**4. AC circuits 12 hours Max marks 27**

AC through L, C, R, LC, CR, LR and LCR – resonance and resonant circuits – repulsion

between coil and conductor – j operators, application to AC circuits – AC bridges –

Anderson and Rayleigh bridge.

(Sections 22.1, 22.2, 22.3, 22.6, 22.7, 22.10, 22.11, 22.13, 22.18 to 22.22.1, 22.23 of

**Core Course ****–****IX 72 hours (Credit ****– ****4)**

**PH5 B09: ELECTRONICS (ANALOG & DIGITAL)**

**UNIT I**

**1. Semiconductor rectifiers and DC Power supplies 8 hours. Max marks 15**

Preliminaries of rectification, Bridge rectifier, Efficiency, Nature of rectified output,

Ripple factor, different types of filter circuits, voltage multipliers, Zener diode voltage

stabilization (sections 6.13-6.15, 6.17 - 6.27 V.K Mehta)

**2. Transistors: 14 hours Max marks 27**

Different transistor amplifier configurations:- C-B, C-E, C-C, their characteristics,

amplification factors, their relationships, Load line Analysis, Expressions for voltage gain,

current gain and power gain of C.E amplifier, cut-off and saturation points, Transistor

biasing, Different types of biasing - Base resistor, voltage divider bias method, single stage

transistor amplifier circuit, load line analysis, DC and AC equivalent circuits. (Section 8.7

- 8.10, 8.12-8.22, 9.2-9.8, 9.11-9.12, 10.4-10.5, 10.7-10.9 V K Mehta)

**3. Multistage Transistor amplifier 4 hours Max marks 10**

R.C coupled amplifier- frequency response, and gain in decibels, Transformer coupled

Amplifiers,Direct Coupled Amplifier,Comparison.

(Section 11.1-11.8, VK Mehta)

**4. Feedback Circuits and Oscillators 8 hours Max marks 12**

Basic principles of feedback, negative feedback and its advantages, positive feedback

circuits Oscillatory Circuits-LC, RC oscillators, tuned collector oscillator, Hartley,

Colpitt’s, phase shift and crystal oscillators - their expressions for frequency.

Sections (13.1-13.5, 14.1 - 14.13, 14.15-14.20 VK Mehta)

**5. Special Devices and Opamp 12 hours Max marks 18**

LED, basic idea of UJT, FET, MOSFET, OP-amp-basic operation,

application, inverting, Non-inverting, summing amplifiers, Differentiator integrator.

(Sections 7.2-7.4, 19.2-19.14, 19.14, 19.27-19.30, 21.11-21.14, 25.1, 25.16, 25.15-

25.17,25.23-25.26, 25.32, 25.34-25.35, 25.37 VK Mehta)

- Teacher: Latha P Physics

- Teacher: Dr. Sini R Physics