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Showing posts from April, 2024

Boost Your Confidence: 10 Essential Questions and Answers for Electronics Engineer Interviews

1. Explain the relationship between voltage, current, and resistance using Ohm's Law. Answer:  Ohm's Law states that the current (I) flowing through a conductor is directly proportional to the voltage (V) applied across it and inversely proportional to its resistance (R). This can be expressed mathematically as I = V / R. Understanding Ohm's Law is fundamental to analyzing and designing electronic circuits. 2. Differentiate between conductors, insulators, and semiconductors. Answer: Conductors:  Materials that readily allow electric current to flow through them due to loosely bound electrons. Examples include metals like copper and aluminum. Insulators:  Materials that strongly resist electric current flow due to tightly bound electrons. Examples include rubber, plastic, and glass. Semiconductors:  Materials with conductivity that falls between conductors and insulators. Their conductivity can be controlled by applying voltage or doping with impurities, making them c...

Basic Electronics quiz for beginner's

Question 1: In which year was the transistor invented? (a) 1947 (b) 1956 (c) 1960 (d) 1970 Question 2: How is rotational force generated in an electric motor? (a) Due to the electromagnetic field (b) Due to mechanical force (c) Due to gravitational force (d) Due to light energy Question 3: Which of the following is not an electrical appliance? (a) Fan (b) Fluorescent tube (c) Radio (d) Bicycle Question 4: Which device is used to convert solar energy into electrical energy? (a) Solar cell (b) Windmill (c) Generator (d) Battery Question 5: What is Ohm's Law? (a) V = IR (b) I = V/R (c) R = V/I (d) V = I^2R Question 6: What is the full form of LED? (a) Light Emitting Diode (b) Light Detecting Emitter (c) Light Energy Device (d) Light Amplifying Diode Question 7: Which of the following is not a semiconductor material? (a) Silicon (b) Germanium (c) Copper (d) Gallium Arsenide Question 8: On what principle does a transformer work? (a) Flow of electric current (b) Electric field (c) Induct...