Basic Electronics - VTURESOURCE
SHREE PILLAPPA COLLEGE OF ENGINEERING, KONDASHETTIHALLI ROAD, BENGALURU-89Ph no: 9742174174, 9844231315QUESTION BANKSub: Basic ElectronicsSub Code: 15ELN15MODULE I: a) Semiconductors diodes and its applications1. Define the following diode parameters: a) Forward voltage b) Knee voltagec) Dynamic resistancef)Reverse recovery timerecovery timed) Reverse saturation Currente) PIVg)Reverse breakdown voltageh)Forwardi)reverse recovery time2. Explain the quantitative theory of unbiased p-n junction.3. What do you mean by biasing the pn junction? Explain briefly.4. Explain the V-I characteristics with respect to the Shockley equation.5. Draw and explain V-I characteristics of p-n junction diode.6. Discuss on types of diodes.7. What is the effect of temperature on cut-in voltage and reverse saturationcurrent?8. Differentiate between diffusion and transition capacitance.9. Differentiate between Zener breakdown and Avalanche breakdown10. Draw the volt- ampere characteristics of Si & Ge diode, explain briefly.11. Explain DC equivalent circuits of pn junction.12. Discuss on the diode approximations.13. What is dc load line? Explain briefly. Give the significance of Q-point.14. Expalin the following terms w r t pn junction:a)DC resistanceb) AC resistance15. With a neat circuit diagram and wave forms, explain the operation of Halfwave rectifier. Also mention its merits and demerits.16. Explain Zener diode voltage regulator circuit with no load and with load.17. Explain the working of a full wave bridge rectifier with the help of circuitdiagram and wave forms. Also mention its merits and demerits.18. With a neat circuit diagram and waveforms, explain the working of FWR.Also mention its merits and demerits.SHASHIDHAR T M B.E (SJMIT), M.Tech (PESIT), M.Sc( Maths), (Ph.D (RVCE)) , Asst. Professor, ECE Dept.
SHREE PILLAPPA COLLEGE OF ENGINEERING, KONDASHETTIHALLI ROAD, BENGALURU-89Ph no: 9742174174, 984423131519. For HWR, derive an expression for a)DC load current b) Average loadvoltage c) RMS load current d) RMS load voltage e)Ripple factor f) Efficiencyg)Percentage regulation h)PIV20. For FWR, derive an expression for a)DC load current b) Average loadvoltage c) RMS load current d) RMS load voltage e)Ripple factor f) Efficiencyg)Percentage regulation h)PIV21. For FWBR, derive an expression for a)DC load current b) Average loadvoltage c) RMS load current d) RMS load voltage e)Ripple factor f) Efficiencyg)Percentage regulation h)PIV22. What is filter? List the types of filters.23. With a neat circuit diagram and waveforms, explain the working of HWR with‘C’ filter.24. With a neat circuit diagram and waveforms, explain the working of FWR with‘C’ filter.25. With a neat circuit diagram and waveforms, explain the working of FWBRwith ‘C’ filter.26. State the advantages and disadvantages of capacitor filter.27. Explain briefly line and load regulation.MODULE 1: b) Bipolar Junction Transistors1. Draw an unbiased NPN transistor. Label it and show the depletion regionsand barrier potentials. Explain briefly.2. With a neat diagram, explain unbiased PNP transistor.3. Discuss on the operating regions of a transistor.4. Discuss on the types of BJTs.5. With a neat diagram, explain biased NPN transistor.6. With a neat diagram, explain biased PNP transistor.7. Discuss on BJT voltages and currents.8. Discuss on the different configurations of BJT.9. Define current gain of CB, CE and CC transistor configurations.SHASHIDHAR T M B.E (SJMIT), M.Tech (PESIT), M.Sc( Maths), (Ph.D (RVCE)) , Asst. Professor, ECE Dept.
SHREE PILLAPPA COLLEGE OF ENGINEERING, KONDASHETTIHALLI ROAD, BENGALURU-8910. Prove the following𝛼a) 𝛽𝑑𝑐 1 𝛼𝑑𝑐𝑑𝑐𝛼Ph no: 9742174174, 9844231315𝛽𝛼b)𝛾𝑑𝑐 𝛼𝑑𝑐 𝛽𝑑𝑐 1c)𝐼𝐶 1 𝛼𝑑𝑐 𝐼𝐵𝑑𝑐1d) 𝐼𝐶 𝛽𝑑𝑐 𝐼𝐵 (1 𝛽𝑑𝑐 )𝐼𝐶𝐵𝑂 1 𝛼𝑑𝑐 𝐼𝐵 (1 𝛼 ) ��e)𝛼𝑑𝑐 𝛽𝑑𝑐 1 𝛾𝑑𝑐 1𝛾𝑑𝑐11. With the help of a circuit diagram, show how a transistor can amplify directcurrent and alternating current.12. With a neat circuit diagram, explain how transistor acts as voltage amplifier.13. Sketch the common-emitter input, output and forward transfercharacteristics and explain briefly.14. Draw the common-base input ,output and forward transfer characteristicsand explain briefly.15. Draw common collector circuit and sketch the input, current gain and outputcharacteristics. Also explain operating regions by indicating them oncharacteristics curve.16. Explain briefly avalanche breakdown, early effect and punch through.17. Which is the most efficient transistor configuration? Explain briefly.18. Discuss how to derive current gain characteristics from outputCharacteristics.19. List the merits, demerits and applications of BJT.20. Compare CB, CE and CC configurations.SHASHIDHAR T M B.E (SJMIT), M.Tech (PESIT), M.Sc( Maths), (Ph.D (RVCE)) , Asst. Professor, ECE Dept.
SHREE PILLAPPA COLLEGE OF ENGINEERING, KONDASHETTIHALLI ROAD, BENGALURU-89Ph no: 9742174174, 9844231315Module 2: a) Transistors Biasing1. Explain the operation of the base bias circuit using an NPN transistor andwrite the expressions for IB,IC and VCE .2. What is Dc load line? Explain Base bias method with necessary equations.3. What do you mean by biasing the transistor?4. Explain the need for biasing the transistor.5. What do you mean by silent point? Explain briefly.6. Show that for a maximum undistorted output, the transistor should bedriven into active region.7. Discuss on the design of base-bias circuit.8. Explain the operation of the base bias circuit using an pnp transistor andwrite the expressions for IB,IC and VCE .9. State the merits, demerits and usage of base bias circuit.10. Discuss on the factors affecting the stability of Q-point.11. Sketch a universal bias circuit using an pnp transistor.12. Compare base-bias and self bias circuits.13. Discuss on the design of Voltage divider bias circuit.14. With a neat circuit diagram, explain the Emitter current bias circuit usinga) Approximate analysis.b) Precise analysis.15. Define the stability factor of transistor circuit.16. Draw Dc load line and locate Q-point for a Voltage-divider bias circuit.17. State the merits, demerits and usage of voltage divider bias circuit.MODULE 2: b) OP Amp1. What is an Op-Amp? What are the basic properties of an Op-Amp2. State the applications of Op-Amp.3. Draw the pin diagram, circuit symbol and Circuit model of Op-Amp.4. Mention the features of 𝜇𝐴 741.5. State the advantages of Op-Amp over transistor amplifier.SHASHIDHAR T M B.E (SJMIT), M.Tech (PESIT), M.Sc( Maths), (Ph.D (RVCE)) , Asst. Professor, ECE Dept.
SHREE PILLAPPA COLLEGE OF ENGINEERING, KONDASHETTIHALLI ROAD, BENGALURU-89Ph no: 9742174174, 98442313156. With a neat block diagram, explain the architecture of Op-Amp.7. Discuss on saturation property of Op-Amp.8. Explain the different configurations of an Op-amp.9. With usual notations, show that the total output of an Op-amp(differential1amplifier) is given by, 𝑉𝑜 𝐴𝑑 𝑉𝑑 (1 𝐶𝑀𝑅𝑅𝑉𝑐𝑚𝑉𝑑)10. Explain the concept of virtual short.11. Prove that for an undistorted output voltage, the maximum signal frequency𝑆𝑅𝑆𝑅is given by, 𝑓𝑚𝑎𝑥 2𝜋𝑉 (𝐻𝑧) or 𝜔𝑚𝑎𝑥 𝑉 (𝑟𝑎𝑑/𝑠)𝑚𝑚12. Define the following Op-amp parameters.a)Large signal voltage gainb) Common mode gainc) CMRRd) Input impedanced)Output resistancee)BWf)Input Offset voltageg)Output Offset voltageh)SRi) Input Offset currentj)Input bias currentk)SVRR(PSRR)13. Explain the working of Op-Amp as:c) Differentiatora) Inverting amplifierd)Voltage followerb) Integratore) Non-inverting amplifier14. List the characteristics of an ideal Op-Amp15. Draw the transfer characteristics of an Op-amp and explain briefly.16. Explain the need for an Op-amp.17. List the characteristics of µA 741 Op-Amp18. Derive an expression for output voltage of 3 input summing amplifier.19. Derive an expression for output voltage of a subtractor.Module 3: Digital Electronics1. Convert (110.01101)2 ( )10 and (69.25)10 ( )2.2. Convert (101101101)2 ( )16 and (BAD.143)16 ( )23. Convert (101.001101)2 ( )8 and (276.045)8 ( )24. Convert (4567.23)8 ( )10 and (678.234)10 ( )85. Convert (54.387)10 ( )16 and (BACE.143)16 ( )10SHASHIDHAR T M B.E (SJMIT), M.Tech (PESIT), M.Sc( Maths), (Ph.D (RVCE)) , Asst. Professor, ECE Dept.
SHREE PILLAPPA COLLEGE OF ENGINEERING, KONDASHETTIHALLI ROAD, BENGALURU-89Ph no: 9742174174, 98442313156. Perform the followinga) (1010110.1001100101)2 (?)8 (?)10 (?)16b) (FACE.BAC)16 (?)8 (?)10 (?)27. State and prove Demorgan’s theorems for 4 variables.8. With a neat diagram, Explain the transistor based NOT gate.9. With a neat diagram, Explain AND and OR gates using diodes.10. Write the 1’s and 2’s complement of the following a)110011 b)01010111. Perform the followinga) (110011)2 (101011)2 (?)2b) (101110011)2 (101111000)2 (?)212. Perform using 1’s and 2’s complement methoda) (101001)2-(10010)2b) (11101)2-(10011)2d) (567)8-(329)8c) (ABC)16-(FED)16c) (98)10-(53)1013. Realize half adder using a)NAND gates only b)NOR gates only c)Basic gates.14. Compare analog and digital domains.15. Realise Full adder using a)NAND gates only b)NOR gates only c)Basic gates.16. Implent the following gates using only NAND Gates.a)ANDb) ORc) NOTd) EX-NORe) NORf) EX-OR17. Implent the following gates using only NOR Gates.a)ANDb)ORc)NOTd)EX-NORe)NANDf)EX-OR18. What is half Adder? Explain briefly. Also State its drawback. Suggest ascheme to overcome it and explain briefly.19. Explain the following gates.a)ANDb)ORc)NOTd)XORe)XNORf)NANDg)NOR20. Why NAND and NOR Gates are called Universal Gates?21. Prove the following Boolean expressionsa)(A B)(A c) A BCb)A(A B) A c)A AB A d)𝐴̅𝐵 𝐴𝐵̅ ̅̅̅̅̅̅̅̅̅̅̅̅𝐴̅𝐵̅ 𝐴𝐵22. With truth table, circuit diagram and Boolean expressions, Explain Fulladder.MODULE 4: a) FLIP FLOPSSHASHIDHAR T M B.E (SJMIT), M.Tech (PESIT), M.Sc( Maths), (Ph.D (RVCE)) , Asst. Professor, ECE Dept.
SHREE PILLAPPA COLLEGE OF ENGINEERING, KONDASHETTIHALLI ROAD, BENGALURU-89Ph no: 9742174174, 98442313151. Write a short note on clocked RS Flip-Flop.2. Explain the operation of NOR gate latch(NOR gate FF) using its circuitdiagram, logic symbol and truth table.3. What is a RS Flip-Flop? Explain using its circuit diagram, logic symbol andtruth table.4. Draw the traditional and IEEE logic symbol of AND, NOT, NOR, XOR andXNOR.5. What do you mean by a Flip-Flop? Explain briefly.6. Write a short note on the categories of Flip flops.7. List the types of Flip flops. Explain briefly anyone.8. Give the differences between latch and flip flop.9. With a neat circuit diagram, Logic symbol and truth table, Explain Gated(Clocked) RS Flip-flop.10. Explain the operation of NAND gate latch(NAND gate RS FF) using its circuitdiagram, logic symbol and truth table.MODULE 4: b) MICROCONTROLLER1. What is Microcontroller? List the features of µc 8051.2. Mention the advantages of Microcontroller.3. List the criteria for choosing a Microcontroller.4. List the applications of Microcontroller.5. With a neat block diagram, explain the architecture of 8051.6. With a neat block diagram, discuss on the interfacing of stepper motor with8051. Also write the excitation table.7. With a neat block diagram, explain the construction details of 8051connection to stepper motor. Write the formula to calculate step angle andRPM of stepper motor. Also mention its advantages and applications.MODULE 5: a) COMMUNICATION SYSTEM1. What do you mean by modulation? Mention its typesSHASHIDHAR T M B.E (SJMIT), M.Tech (PESIT), M.Sc( Maths), (Ph.D (RVCE)) , Asst. Professor, ECE Dept.
SHREE PILLAPPA COLLEGE OF ENGINEERING, KONDASHETTIHALLI ROAD, BENGALURU-89Ph no: 9742174174, 98442313152. What do you mean by Communication ? With a neat block diagram, explainthe elements of Radio communication system.3. Explain the necessity of modulation.4. List out the different frequency ranges with its applications.5. Compare AM, FM and PM.6. With neat waveforms, explain the principle of Frequency Modulation. (Or)Write a short note on FM.7. What is angle modulation? Explain any one of the type.8. What is demodulation (detection)? With a neat circuit diagram andwaveforms, explain the operation of Envelope detector.9. Derive an expression for FM wave.10. Derive an expression for an AM wave11. Derive an expression for modulation index interms of total power and carrierpower (or total current and carrier current) of an AM wave12. Define modulation index or depth of modulation or modulation factor. Derivean expression for modulation index interms of maximum and minimumvoltages of AM wave.13. Explain the effect of modulation index on AM14. Draw the frequency spectrum of AM wave. Write an expression for BW of AMwave.15. Derive an expression for total power in an AM wave when the carrier ismodulated by N Cosine waves.16. Derive an expression for instantaneous phase of FM wave.17. Draw the frequency spectrum of FM wave.18. Define the following terms w.r.t FMi)modulation indexii)BWiii)Frequency deviation.19. Prove that the maximum efficiency in AM is 33.33%.20. Prove that the minimum efficiency in AM is 0%.SHASHIDHAR T M B.E (SJMIT), M.Tech (PESIT), M.Sc( Maths), (Ph.D (RVCE)) , Asst. Professor, ECE Dept.
SHREE PILLAPPA COLLEGE OF ENGINEERING, KONDASHETTIHALLI ROAD, BENGALURU-89Ph no: 9742174174, 984423131521. With a neat waveforms, explain the principle of Amplitude Modulation. (Or)Write a short note on Amplitude modulation22. With a neat waveforms, explain the principle of Phase Modulation withnecessary mathematical expressions.23. With usual notations, Prove that 𝑃𝑡 𝑉𝐶 22𝑅(1 𝑚22) 𝑜𝑟 𝑃𝑡 𝑃𝑐𝑎𝑟 (1 𝑚22)Or S T the total power in an AM wave is more than carrier power.24. Derive an expression for total current contained in an AM wave interms ofcarrier wave current and modulation index.25. Prove that the maximum power in an AM wave is 150% of the carrier power.MODULE 5: b) TRANSDUCERS1. What is transducer? Explain briefly with a neat block diagram2. Mention the differences between Active and Passive transducers. Also list thefew measurands.3. List the merits and demerits of electrical transducer.4. List the Characteristics (or requirements) of a transducer.5. Classify the transducers.6. With a neat diagram, explain the construction and principle of operation ofLVDT. Also state the advantages, drawbacks and applications of LVDT.7. With a neat diagram, explain the principle of operation of Resistancethermometer (or RTD). Also state the advantages, drawbacks andapplications of Resistance thermometer8. With a neat diagram, explain the principle of operation of thermistor. Alsostate the advantages, drawbacks and applications of thermistor.9. With a neat diagram, explain the principle of operation of Piezoelectrictransducer. Also state the advantages, drawbacks and applications ofPiezoelectric transducer.10. With a neat diagram, explain the principle of operation of Photoelectrictransducer. Also state the advantages, drawbacks and applications ofPhotoelectric transducerSHASHIDHAR T M B.E (SJMIT), M.Tech (PESIT), M.Sc( Maths), (Ph.D (RVCE)) , Asst. Professor, ECE Dept.
SHREE PILLAPPA COLLEGE OF ENGINEERING, KONDASHETTIHALLI ROAD, BENGALURU-89Ph no: 9742174174, 984423131511. What do you mean by resistance transducer? Explain any one of the type.12. What is inductive transducer? Explain briefly.13. What is thermal couple? Explain the terms Seeback, Peltier, Thomson andJoule effect.14. Compare resistance thermometer and thermistor.15. Define the following terms w.r.t resistance transducer:a)Time Constant b) Dissipation factor c) Resistance ratioSHASHIDHAR T M B.E (SJMIT), M.Tech (PESIT), M.Sc( Maths), (Ph.D (RVCE)) , Asst. Professor, ECE Dept.
Module 2: a) Transistors Biasing 1. Explain the operation of the base bias circuit using an NPN transistor and write the expressions for I B,I C and V CE. 2. What is Dc load line? Explain Base bias method with necessary equations. 3. What do you mean by biasing the transistor? 4. Explain the need for biasing the transistor. 5. What do you mean .
LG Electronics V10 10 LG Electronics V20 10 LG Electronics V30 30 LG Electronics V40 ThinQ Dual SIM 80 LG Electronics V50 ThinQ 160 LG Electronics VELVET 4G 100 LG Electronics VELVET 5G 120 LG Electronics X Powe
Medical Electronics Lab This Lab facilitates two major skills development: 1. Basic Analog & Digital Electronics 2. Medical Electronics ( Application of electronics in biomedical ) For Basic Electronics skills development the Lab is equipped with Com3 Kits which have electronics trainer boards interfaced with software on PC. This
4. Basic Electronics(7 th Edition)-Malvino and Bates 5. Electronics Fundamentals and Applications-D. Chattopadhyay and P.G.Rakshit, 6. Electronics: Fundamentals of Analog circuits-Thomas L. Floyd, David Buchla, 7. Electronic Devices and Circuit Theory-Robert Boylestad, Louis Nashelsky 8. Basic Electronics-Debashis De 9. Basic Electronics .
employment as an electronics technician should have a broad background in basic electronics. The Pre-employment Test screens applicants basic electronics knowledge. The basic skills and knowledge are . Evaluate faults in electrical circuits using basic theory of motors and generators . 9) Digital Electronics. a) Develop the Truth Tables for .
1 Opto Electronics PG (Opto Electronics & Communication Systems) 2 Fibre Optics PG (Opto Electronics & Communication Systems) 3 Optical Communication Technology PG (Opto Electronics & Communication Systems) 4 Power Electronics B Tech Electrical & Electronics Engg. (CUSAT) 5 DC Machines and Transformers B Tech
Analogue Electronics: 24 hours of lectures and tutorials (12 weeks 2 hours/week) Assessment for analogue electronics: Mid-semester test in November, analogue electronics only, 1 hour, 8% of the final mark. Final examination in January, analogue & digital electronics, 2 hours, 50% of the final mark.
Accelerators and Electronics Many accelerators have aging infrastructures, including their electronics While this might be a problem on many other fronts, the older electronics are better suited to high radiation environments than modern electronics As many accelerators are modernizing their electronics or are significantly changing their infrastructures, facilities are finding .
2014 AMC 8 Problems Problem 1 Harry and Terry are each told to calculate . Harry gets the correct answer. Terry ignores the parentheses and calculates . If Harry's answer is and Terry's answer is , what is ? Solution Problem 2 Paul owes Paula 35 cents and has a pocket full of 5-cent coins, 10-cent coins, and 25-cent coins that he can use to pay her. What is the difference between the largest .
