Reliable Technosystems India Embedded Engineer Interview Questions and Answers

Conductor, insulator and semiconductor are materials that conduct electricity in different ways.

• Conductors allow electricity to flow through them easily, such as copper and aluminum wires.

• Insulators do not allow electricity to flow through them easily, such as rubber and plastic.

• Semiconductors have properties of both conductors and insulators, such as silicon and germanium.

• The conductivity of a material can be measured...read more

Semiconductors are used in electronics for their ability to control the flow of electricity.

• Semiconductors have a unique property of being able to switch between conducting and insulating states.

• They are used in transistors, diodes, and integrated circuits.

• Examples include silicon, germanium, and gallium arsenide.

The most used semiconductor in electronics is silicon.

• Silicon is abundant and has excellent semiconductor properties.

• It is used in microprocessors, memory chips, and other electronic components.

• Other semiconductors like germanium and gallium arsenide are also used in specialized applications.

• Silicon is preferred due to its low cost, high reliability, and ease of manufacturing.

• Advancements in silicon technology have led...read more

Semiconductor doping is used to make a semiconductor p-type or n-type by introducing impurities with different valence electrons.

• To make a semiconductor p-type, impurities with three valence electrons (e.g., boron) are added.

• To make a semiconductor n-type, impurities with five valence electrons (e.g., phosphorus) are added.

• Doping alters the conductivity and creates majority and minority charge carriers.

• P-type has holes...read more

Biasing is the process of providing a DC voltage or current to establish a desired operating point for electronic components.

• Biasing is used to ensure that electronic components operate within their specified range.

• It involves setting the appropriate voltage or current levels to achieve the desired performance.

• Biasing is commonly used in transistors, amplifiers, and other electronic circuits.

• There are different types o...read more

Zener diode is used as a voltage regulator and to protect circuits from overvoltage.

• Zener diode maintains a constant voltage across its terminals when reverse biased

• It is used in voltage regulator circuits to provide a stable output voltage

• Zener diodes are also used to protect circuits from overvoltage by shunting excess voltage to ground

• They are commonly used in power supplies, voltage regulators, and surge protectors

Logic gates are electronic circuits that perform logical operations on one or more inputs to produce an output.

• Logic gates are used in digital electronics to create complex circuits and perform mathematical operations.

• There are several types of logic gates, including AND, OR, NOT, NAND, NOR, XOR, and XNOR gates.

• Logic gates are the building blocks of digital circuits, and are used in everything from simple calculators t

There are three basic logic gates: AND, OR, and NOT.

• AND gate outputs 1 only if all inputs are 1

• OR gate outputs 1 if any input is 1

• NOT gate outputs the opposite of its input

XOR is a logical operator that returns true if and only if both inputs are different.

• XOR is represented by the symbol ^.

• The truth table of XOR has two inputs and one output.

• If both inputs are the same, the output is false. Otherwise, the output is true.

Header files contain declarations of functions, variables, and data structures used in a program.

• Header files are included at the beginning of a source code file using #include directive

• They provide information about the functions and variables used in the program

• They help in avoiding redefinition of functions and variables

• Examples of header files are stdio.h, math.h, string.h, etc.

A program to find prime numbers

• Start with a loop to iterate through numbers

• Check if each number is divisible by any number less than itself

• If not, add it to a list of prime numbers