August 2015 V55/V63/T14031/T04031/EE/20150817 Basic Electronics Instructions Marks-80 Time: 3 Hrs 1. All questions are compulsory. 2. “Long Answer type Question (LAQ)” is a supply type question of 15 marks which required a typical answer of about 60-80 lines in bout 32-40 minutes. 3. “Sort Answer type Question (SAQ)” is a supply type question of 5 marks which required a typical answer of about 15-20 lines in bout 08-10 minutes. 4. Figures to the right indicate marks allotted to the questions. 5. Assume suitable data if necessary 6. Use a nonprogrammable type of scientific calculator is allowed Marks SECTION-A Q.1 Draw & Explain VI characteristics of photo diode? List the application OR 15 Q.1 Draw symbol &Explain the construction and working of schottky diode. 15 Q.2 Draw circuit diagram of series & parallel ,positive & negative clipper 15 OR Q.2 Explain the principle & operation of series inductor filter with waveform. Derive the expression for ripple factor. 15 Q.3 Write the specification & application of zener diode 5 Q.4 Which is the most commonly used transistor connection & why? 5 SECTION-B Q.5 Mentions the step for determine the DC operating point of transistor in CE mode. 15 OR Q.5 Compare the RC coupling, transformer coupling and direct coupling. 15 Q.6 Draw & explain the structure of N channel enhancement type MOSFET. OR 15 Q.6 Draw & explain the structure of P channel depletion type MOSFET. 15 Q.7 Justify the current gain in common base configuration is less than and nearly equal to one. 5 Q.8 What is mean by biasing? What is the need of biasing? 5 Computer Generated Random Question Paper dated: 06-07-2015 11:46:55 ***BEST OF LUCK***