Definition: Resistor is an electronic device which is used to provide an obstruction in the path of current. Resistors are used in electronics circuits for various applications. It is used as the load in amplifier circuits. A resistor is used with the capacitor to provide discharge of capacitor when the power supply is removed. It is also used in filter circuit with inductor and capacitor. Characteristics of Resistors The resistor has two characteristics which are resistance and power … [Read more...] about Resistor

## Binary Number System

Binary Number System comprises of two digits 0 & 1, thus, the base of the binary number system is 2. Thus, it is called as a base-2 system. It is much easier and simpler than decimal number system because it is comprised of only two digits. In binary number system, any number can be expressed by array of numbers in which each coefficient is calculated by successive power of 2. The representation of decimal numbers is done by expressing the digits of the number in power of 10. Similarly in … [Read more...] about Binary Number System

## Decimal Number System

The decimal number system comprises of digits from 0-9 i.e. 0, 1, 2, 3, 4, 5, 6, 7, 8 & 9. The base or radix of the decimal number system is 10 because total number of digits available in decimal number system is 10. It doesn’t imply that these 10 digits will represent only 10 quantities, but all the other digits can be expressed with the help of these numbers. Decimal number system is the most common number system which we use in our daily lives. If we want to deal with digital system … [Read more...] about Decimal Number System

## Kirchhoff’s Law

Have you ever thought why we need a Kirchhoff’s Circuit law? Your answer might be that Kirchhoff’s Circuit law is used to find current and voltage in electronic circuits but then what about Ohm’s law? Because Ohm’s law can also be used to determine current and voltage in electronic circuits, but still we need Kirchhoff’s circuit law, why is it so? The answer to this question is, in the case of complicated circuits such as Bridge and T-networks we cannot find current and voltage circulating in … [Read more...] about Kirchhoff’s Law

## Number System

Computers understand machine language. Every letter, symbol etc. that we write in the instructions given to computer, it gets converted into machine language. This machine language comprises of numbers. In order to understand the language used by computers and other digital system it is crucial to have a better understanding of number system. Number systems can be classified into its sub-types on the basis of base of that system. Base of a number systems plays crucial role in understanding … [Read more...] about Number System

## Electronic Components

Definition: Electronic components are the elements of circuit which helps in its functioning. They can be classified into two types i.e. Active Components and Passive Components. Active elements are those which possess gain. They can give energy to the circuit. On the contrary passive elements do not possess gain and they cannot give energy continuously to the circuit. Passive components cannot amplify or energize the energy of the signal associated with them, they can only attenuate it, … [Read more...] about Electronic Components

## Hall Effect Sensor

Definition: Hall Effect Sensor is the solid state device which switches to active state when it is introduced in magnetic field. The output voltage of hall effect sensor is dependent on magnetic field around it. When the magnetic field across the semiconductor slab changes the magnetic flux density also changes due to which the output voltage of hall effect sensor varies. Principle of Hall Effect Sensor The hall effect sensor works on the principle of hall effect. According to hall effect … [Read more...] about Hall Effect Sensor

## Digital Electronics

Definition: Digital Electronics is the sub-branch of electronics that deals with digital signals for processing and controlling various systems and sub-systems. In various applications like sensors and actuators, usage of digital electronics is increasing extensively. Digital Signals Digital electronics is entirely the field in which digital signals is used. Digital signals are discretization of analog signals. A signal carries information. In digital signals, the values in a particular band … [Read more...] about Digital Electronics

## Hall Effect

Definition: When a piece of metal or semiconductor is placed in magnetic field, more precisely in transverse magnetic field, and direct current is allowed to pass through it, then the electric field gets developed across the edges of metal or semiconductor specimen. This phenomenon is called Hall Effect. Explanation of Hall Effect Consider a piece of metal is placed in magnetic field. And the magnetic field is perpendicular to the metal or semiconductor specimen. Now, direct current is passed … [Read more...] about Hall Effect

## Surge Protector

Definition: Surge Protector is a resistor which is inserted between rectifier circuit and the filter circuit to prevent the circuit from surge current. In general applications it may be omitted but in case of power supply it is beneficial to use surge protector or surge resistor. You may be thinking that why we have introduced a new term here i.e. Surge Current. As we have not used this term in our previous articles. So, surge current is the peak current which flows during initial … [Read more...] about Surge Protector