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2nd sem electronics 1 - nov 2011.pdf

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Register Number II semester Diproma Examination, Novembe r 20rr ELECTRICAL & ELECTRONICS ENGII{EERII\G BOARD BLECTROIUCS - I Time:3 Hours I IMax. Marks : 100 Notes.. (1) Answerto Section_ I is compulsory. (2) Answer any two full questions from each section - rr, ur & rv. Code :9EE-24 5x1:5 SECTION _ I 1.. (a) Fill in the blanks : (i) The most commonly used semiconductor material is (ii) A crystal diode is used as (iii) The base of the transistor is doped. (iv) The gate of J.F.E.T. is biased. (v) The gate is universal gate. O) Explain the working of Transistor as a switch. SECTION _ II (a) Differentiate between conductor, insulator and semiconductor with energy band diagram. Differentiate between intrinsic and extrinsic semiconductor. state the meaning of dooping and exprain formation of p+1pe and N-type semiconductor. 3' (a) Explain the v.I. characteristics of diode with neat diagram. (b) List the types of diode and their application. 5 5 5 6 4 (b) (c) '[Turn over For More Question Papers Visit - www.pediawikiblog.com For More Question Papers Visit - www.pediawikiblog.com

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Page 1: 2nd SEM Electronics 1 - Nov 2011.pdf

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