BCS written syllabus

SYLLABUS FOR BCS (WRITTEN) EXAMINATION     
       
40/235 
 
ELECTRONIC ENGINEERING 
(POST RELATED) 
Subject Code: 271 
Total Marks-200 
 
Part-I 
Marks-100 
 
Electrical Circuits: 
Circuit variables and elements: Voltage, current, power, energy, independent and dependent sources, 
resistance. Basic laws: Ohm's law, Kirchoff's current and voltage laws. Simple resistive circuits: Series 
and parallel circuits, voltage and current divisio n, way -delta transformation. Techniques of circuit 
analysis. Nodal and mesh analysis, Network theorems: Sources transformation. Thevenin's Norton's and 
superposition theorems. Energy storage elements: Inductors and capacitors, series parallel combination 
of inductors and capacitors. Responses of RL and RC circuits: Natural and step responses. 
 
Instantaneous current, voltage, power, effective current and voltage, average power, phasors and 
complex quantities, impedance, real and reactive power, power fac tor. Analysis of single phase a c 
circuits: Series and parallel RL, RC and RLC Circuits, nodal and mesh analysis, application of network 
theorems in a c circuits, circuits with non-sinusoidal excitations. Passive filter. Resonance in a c circuits: 
Series and parallel resonance. Magnetically coupled circuits. Power calculation. 
 
Electronic Circuits: 
P-N junction as a circuit element: Intrinsic and extrinsic semiconductors, operational principle of p -n 
junction diode, contact potential, current -voltage characteristics of a diode, simplified dc and ac diode 
models, dynamic resistance and capacitance. Diode circuits: half wave and full w ave rectifiers, rectifiers 
with filter capacitor, characteristics of a zener diode, zener shunt regulator, clamping and clipping 
circuits. Bipolar junction transistor (BJT) as a circuit element; bipolar junction transistor; current 
components. BJT characte ristics and regions of operation, BJT as a switch. Single stage mid -band 
frequency BJT amplifier circuits; Voltage and current gain, input and output impedance of a common 
base, common emitter and common collector amplifier circuits. Metal -oxide-semiconductor field-effect-
transistor (MOSFET) as circuit element; structure and physical operation of an enhancement MOSFET, 
threshold voltage, Body effect, current voltage characteristics of and enhancement MOSFET, biasing 
discrete and integrated MOS amplifier cir cuit, single -stage MOS amplifier, MOSFET as a switch, 
CMOS inverter. Junction field -effect transistor (JEFT): Structure and physical operation of JEFT, 
transistor characteristics, pinch -off voltage. Differential and multistage amplifiers; Description of 
differential amplifiers, small -signal operation, differential and common mode gains, RC coupled mid -
band frequency amplifier. 
 
Frequency response of amplifiers:  
Poles, zeros and Bode plots, amplifier transfer function, techniques of determining 3 dB frequen cies of 
amplifier circuits, frequency response of single -stage and cascode amplifiers, frequency response of 
differential amplifiers. Operatinal amplifers (Op -Amp): Properties of ideal Op -Amps, non-inverting and 
inverting amplifiers, inverting intergrators , differentiator, weighted summer and other applications of 
Op-Amp circuits, effects of finite open loop gain and bandwidth on circuit perfomance logic signal 
operation of Op-Amp, de imperfections. General purpose Op-Amp; DC analysis, small-signal analysis of 
different stages, gain and frequency response of 741 Op -Amp. Negative feedback: properties, basic 
topologies, feedback amplifiers with different topologies, stabitlity, frequency compersation. Active 
filters; Differnet types of filters and specificatio ns, transfer functions, realization of first and second 
order low, high and band pass filters using Op -Amp. Signal generators: Basic principle of sinusoidal