Physics Electronics Test Online Preparation Mcqs Physics Electronics Test Online Preparation Mcqs With Answers Start Below 123456789101112131415Show paginator Hide paginator 7% Question 1 of 15 1. The specially designed semiconductor diodes used as fast counters in electronic circuits are ____.A. Solar cellsB. The photo diodesC. The light emitting diodeD. The switchQuestion 1 of 15 Loading... Question 2 of 15 2. Hole is equivalent toA. A neutral particleB. An electronC. A positive chargeD. A negative chargeQuestion 2 of 15 Loading... Question 3 of 15 3. In the transistors schematic symbol, the arrow _______.A. is located on the baseB. is located on the emitterC. points from north to southD. is located on the collectorQuestion 3 of 15 Loading... Question 4 of 15 4. Non-inverting amplifier circuits have ______A. A very high input impedanceB. A very low input impedanceC. None of the aboveD. A low output impedanceQuestion 4 of 15 Loading... Question 5 of 15 5. Depletion region of a junction is formed __________A. When temperature variesB. During the manufacturing processC. Under reserve biasD. Under forward biasQuestion 5 of 15 Loading... Question 6 of 15 6. p-n junction when reversed biased acts as a ________.A. on switchB. InductorC. CapacitorD. off switchQuestion 6 of 15 Loading... Question 7 of 15 7. To obtain a p-type semiconductor Si Crystal must be doped with foreign atoms whose valency is ______.A. 4B. 2C. 3D. 5Question 7 of 15 Loading... Question 8 of 15 8. In p-n-p transistor, the collector current is _______.A. Equal to emitter currentB. Greater than emitter currentC. Slightly less than emitter currentD. Any of aboveQuestion 8 of 15 Loading... Question 9 of 15 9. The value of resistivity of conductor is of the order of _______.A. 10-5 ohm meterB. 10-7 ohm meterC. 10-6 ohm meterD. 10-8 ohm meterQuestion 9 of 15 Loading... Question 10 of 15 10. In case of full wave rectifier the rectified D.C has a.c ripples. The ripple frequency isA. Twice than frequency of input A.CB. Four times the frequency of input A.CC. Same that of input A.CD. Half than frequency of input A.CQuestion 10 of 15 Loading... Question 11 of 15 11. In p-type semiconductor the majority and minority charge carries areA. Electrons and protonsB. Holes and protonsC. Holes and electronsD. Electrons and holesQuestion 11 of 15 Loading... Question 12 of 15 12. NAND gate is a combination ofA. AND gate and OR gateB. OR gate and NOT gateC. NOT gate and NOTD. AND gate and NOT gateQuestion 12 of 15 Loading... Question 13 of 15 13. Thermions are _________A. ElectronsB. PhotonsC. PositronsD. ProtonsQuestion 13 of 15 Loading... Question 14 of 15 14. On increasing the reverse bias to a large value in a pn junction diode, the currentA. Decreases slowlyB. Increases slowlyC. Increases suddenlyD. Remains fixedQuestion 14 of 15 Loading... Question 15 of 15 15. In p-n-p transistor, p works as _______.A. CollectorB. Any of aboveC. EmitterD. BaseQuestion 15 of 15 Loading... Loading... Related Study Posts:MDCAT Test Physics Test Online PreparationASF Written Test Preparation Online McqsFPSC SST Test Preparation Mcqs OnlineOnline ECAT Test Preparation McqsPPSC Lecturer Test Preparation Online McqsLecturer Test KPPSC Preparation Mcqs OnlineSPSC SST Test Preparation Mcqs Online with SyllabusFPSC Test Preparation Mcqs Online Subject WiseIB Pakistan NTS Jobs 2025 Online Test Preparation McqsMDCAT Test Preparation Online Related Syllabus Mcqs