B.TechSemester 22021-22Emerging Domain In Electronics EngineeringKEC201T
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Emerging Domain In Electronics Engineering (KEC201T) - AKTU Question Paper 2021-22

B.Tech · Semester 2 · Free PDF Download

This is the official AKTU Emerging Domain In Electronics Engineering Previous Year Question Paper for B.Tech Semester 2, academic session 2021-22. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 2
Session:2021-22
University:AKTU / UPTU

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Questions Asked in 2021-22

Emerging Domain In Electronics Engineering (KEC201T) — complete question paper

Section AAttempt all q u e s t i o n s i n b r i e f . 2*10 = 20
  • a
    Discuss the formation of depletion layer in diode. 1
  • b
    Explain the effect of temperature on diode. 1
  • c
    What is difference between BJT and JFET. 2
  • d
    Determine β dc and ICBO , If IE = 6mA, IC = 5.92mA and ICEO=200mA. 2
  • e
    What do you mean by CMRR in OP-AMP. 3
  • f
    Which is better among micropr ocessor or microcontroller? Ju stify your answer with valid reason
  • g
    Determine base of the following: (i) (345) 10=(531)x (ii) (2374)16= (9076)x 4
  • h
    Write the truth table of tw o input X-OR gate and two input X-NOR gate. 4 (i) Calculate the transmission efficiency if the modulation fac tor is 0.5. 5 (j) Enlist the merits of satellite communication. 5
Section BAttempt any three o f t h e f o l l o w i n g : 10*3 = 30
  • a
    Define Clamper. Determine output voltage for the given netw ork
  • b
    Draw and explain common base N-P-N Transistor with its inpu t and output characteristic graph. Also write an expression for output current
  • c
    Explain the concept of virtual ground in OP-AMP. Determine output Voltage for given network
  • d
    Perform following operation as indicated. (i) Determine2’s complement of (1010.110)2 . (ii) Convert (25.125)10 into Hexadecimal number. (iii) Add binary number (1011)2 and (1111)2. (iv) State De Morgan’s Law. (v) Define minterm and maxterm
  • e
    Explain Amplitude modulation. Derive the expression for the t o t a l power radiated by the modulated signal. Also calculate modulati on efficiency
Section CAttempt any one p a r t o f t h e f o l l o w i n g : 10*1 = 10
  • a
    In the bridge rec tifier circuit, the secondary voltage Vs= 100 sin50t and load resistance is 1kΩ. Calculat e : ( i ) D C c u r r e n t ( i i ) R M S v a l u e of current (iii) Efficiency (iv) Ripple factor
  • b
    Determine and draw output voltage for given network
  • a
    Explain the working of enhancement type MOSFET along with t heir transfer characteristics
  • b
    Describe the construction and working of P-Channel Depletio n MOSFET, with characteristic graph. Also Justify that it is a vo ltage controlled device
  • a
    Briefly explain: (i) OP-Amp as Non-Inverting Amplifier. (ii) Inverting summer. (iii) Blue Tooth and Wi-Fi Technology
  • b
    Enlist the characteristics of ideal OP-Amp. Also determine the output voltage of following circuit
  • a
    Define universal logic Gates. Realize basic logic gates usi ng NAND and NOR gates
  • b
    Simplify the function F(A, B,C,D) =Σm(0,2,5,6,7,13,14,15) + d(8,10) using K-map and implement the simplified function using NAND ga tes only
  • a
    Why do we need modulation? The antenna current of an AM transmitter is 8 A when only the carrier is sent, but it increa ses to 8.93 A, when the carrier is modulated by a single sine wave. Find percentage modulation. Determine the antenna current when the percent of modulation changes to 0.8
  • b
    An Audio frequency signa10 Sin 6π ×400t is used to amplitud e modulate a carrier of 25 sin 4 π ×105t. Calculate (i) Modulation Index (ii) Amplitude of each side band (iii) Total power delivered to the load of 2KΩ (iv) Bandwidth (v) Transmission efficiency

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.

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