Basic Electronics

BE UNIT 1 FAQ   BE UNIT 2 FAQ  BE UNIT 3 FAQ BE UNIT 4 FAQ  BE UNIT 5 FAQ  Crystal Oscillator  Mass-action law  Comparison of Rectifiers  Working of Transistors  working of PN Diode Current Equation of a diode Comparison of transistor characteristics Conductivity of semi conductor


Analog Communications

Need for Modulation  Amplitude Modulation  Block Diagram of Analog Communication system  Single-tone AM Effective Modulation index of Multi-tone AM  

AC UNIT2 FAQ Frequency spectrum of Wide Band FM Indirect FM generation 

AGC/AVC   TRF Receiver  Super hetero dyne Receiver    Choice of Intermediate Frequency  

  Sampling theorem  PPM Band pass sampling Generation of PWM and PPM using waveforms

Noise  Capture effect in FM 



Electro Magnetic Theory

Coulomb’s law  Gauss’s law Electric field intensity Gauss Divergence theorem  Maxwell’s First equation  E- line charge distribution EM Wave Equation Electric Potential V Propagation of EM wave in conductors Inconsistencey in Ampere’s law /Displacement Current density 

Example problems of EM wave propagation  

Digital Communications

DCS VS ACS  Inter Symbol Interference and Eye pattern DC Unit-4 FAQ   Block Diagram of Digital Communication System   Delta Modulation & Demodulation  QPSK Transmitter and Receiver      Probability of error in QPSK  DPSK Transmitter and Receiver  QPSK equation and signal space diagram Base band Vs Pass band Transmission DC Tutorial questions DC Short answer questions with answers FSK  DC Quiz   DC slip test questions   Adaptive Delta Modulation Correlation Receiver Matched Filter   Properties of Mutual Information  






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