Light Emitting Diode and Optical Isolation MCQ’s

This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “Light Emitting Diode and Optical Isolation”. 1. Who was/were awarded with noble prize in physics in the year 2014 for the invention of blue light emitting diodes?a) Hiroshi Amanob) Nick Holonyakc) Isamu Akasaki, Hiroshi Amanod) Isamu Akasaki, Hiroshi Amano and Shuji Nakamura 2. […]

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DIAC MCQ’s

This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “DIAC”. 1. How many terminals does a DIAC (Diode alternating current) have?a) 1b) 2c) 3d) 4 2. What are present at the potential barrier of a PN junction when no external voltage is applied?a) Electronsb) Holesc) Positive Ionsd) Positive and Negative Ions 3. […]

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Bipolar Junction Transistors MCQ’s

This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “Bipolar Junction Transistors”. 1. What happens to the collector current if the emitter current increases while no base voltage is applied?a) Increasesb) Decreasesc) No currentd) First increases then decreases 2. Which terminal of the diode is common to the other two terminals of […]

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Solid State Electronics MCQ’s

This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “Solid State Electronics”. 1. When was flash memory invented?a) Early 1980’sb) Early 1970’sc) Late 1990’sd) Late 1970’s 2. What is the full form of SATA?a) Stable allowed technology attachmentb) Serial allowed technology attachmentc) Stable advanced technology attachmentd) Serial advanced technology attachment 3. Which […]

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