Question 1 A forward-biased PN junction acts as a/an Thyristor Closed switch Amplifier Chopper Answer : Closed switch Question 2 Leakage current flows through the thyristor in Forward conduction mode Reverse blocking mode Forward blocking mode Both forward and reverse blocking mode Answer : Both forward and reverse blocking mode Question 3 A step up … Read more
A Zener diode is a special purpose p-n junction diode that is designed to operate in the reverse direction. They are heavily doped p-n junction diode. Hence, it has very thin depletion region near the junction. When reverse voltage applied across the Zener diode a small reverse current flow through the device called reverse leakage current. … Read more
This post contains Top 50 Basic Electronics MCQ. If you want to see my previous post on basic electronic part – 1 click here. Please download basic electronics MCQ part 2 questions. For all MCQ topics like 8051 Microcontroller, 8086 Microprocessor, Power Electronics, PLC and SCADA you can check here Please check my YouTube channel … Read more
If you want to know about basics of electronics and its components & devices. In this article I have explained what is electronics, history, active component, passive component, applications of electronics, current, voltage. This article give you basic understanding of electronics and help in your semester exam or competitive exam. What Is Electronics ? The … Read more
Hi All, In this series I explained top 20 objective questions and answer. For more questions of PLC and SCADA MCQ series. Please checkout my all MCQ series on PLC and SCADA. I have created MCQ series on Basic Electronics, Power Electronics, 8051 Microcontroller, 8086 Microprocessor. #1 PLC and SCADA MCQ Series click here #2 … Read more
Hi all, This is second part of 8051 microcontroller multiple choice questions series. In this MCQ series i have explained top 50 multiple choice questions. If you want to see more questions on 8051 microcontroller then check my previous post here. This series will help in competitive exam like UPPCL- JE, SSC JE, RSEB, RRB … Read more
Top 20 questions of power electronics. For explanation of each answer you can watch my video Question 1: A thyristor is basically PNPN device A combination of diac and triac A set of SCRs A set of SCR, diac and a triac Answer: PNPN device Question 2: A silicon controlled rectifier (SCR) is a Unijunction device … Read more
Question 1 The most commonly used semiconductor is ……… Germanium Silicon Carbon Sulphur Answer – Silicon Question 2 The resistivity of a pure silicon is about …………… 100 Ω cm 6000 Ω cm 3 x 105 Ω m 6 x 10-8 Ω cm Answer – 6000 Ω cm Question 3 A semiconductor is formed by ……… bonds. … Read more
Hi all, This is first part of 8051 microcontroller multiple choice questions series. In this MCQ series i have explained top 20 multiple choice questions. If you want to see more questions on 8051 microcontroller then check my next post here. This series will help in competitive exam like UPPCL- JE, SSC JE, RSEB, RRB … Read more
Important 50 Multiple Choice Question based on PLC and SCADA Question 1: What is the full form of SCADA? Supervisory Control and Document Acquisition Supervisory Control and Data Acquisition Supervisory Column and Data Assessment Supervisory Column and Data Assessment Answer: Supervisory Control and Data Acquisition Question 2: DCS is a ______ Distributed Control System Data … Read more
