A BJT has emitter current and collector current of the value 10 mA and 9.8 mA respectively, determine current gains for CB and CE configurations.
[3 marks]Explain forward and reverse bias operation of a P-Njunction diode with depletion region.
[4 marks]Draw CB configuration using NPN transistor and discuss its input and output characteristics with I , r, ro, and current gain α. CBO i
[7 marks]Define knee voltage, bulk resistance and PIV for a P-Njunction.
[3 marks]Draw Bridge rectifier circuit and input and output waveforms. Also derive output voltages V & V . dc rms
[4 marks]Draw circuit for voltage Doubler, Tripler & Quadrupler and explain their operation.
[7 marks]Differentiate between Avalanche and Zener breakdown and discuss circuit of Zener as a voltage regulator.
[7 marks]Explain biased negative clipper with necessary waveforms.
[3 marks]Discuss Choke input filter with its limitations.
[4 marks]Discuss load line, operating point, DC & AC load lines for BJT.
[7 marks]Describe positive clamper circuit with necessary waveforms.
[3 marks]Describe RC filter and state ripple voltage formula.
[4 marks]Discuss thermal stability of BJT with stability factors S, S’, S’’.
[7 marks]Explain FET as a switch.
[3 marks]Draw Hybrid equivalent model of transistor for CB, CE, CC configurations.
[4 marks]Explain CE amplifier with derivation of input impedance, output impedance and voltage gain in terms of h parameters.
[7 marks]Page 1 of
[2 marks]Explain FET as an amplifier.
[3 marks]Compare CB, CE, CC amplifiers.
[4 marks]Explain voltage divider bias circuit for BJT in detail.
[7 marks]Discuss Solar cell in detail.
[3 marks]Explain Varactor diode with applications.
[4 marks]Explain Drain characteristics and Transfer characteristics of JFET in detail with all related terms as Transconductance g , drain resistance r , and amplification factor µ. m d
[7 marks]Describe LED with applications.
[3 marks]Discuss Tunnel diode with its V/Icharacteristics and applications
[4 marks]Explain MOSFET and draw the structure for D-MOSFET & E-MOSFET. Page 2 of
[2 marks]