What is a resistor and how does it work?

Have you ever heard what is a resistor (simple), the simple answer to this question is that it is a passive electrical component that causes obstruction in the flow of electric current. This constraint is called resistance and this component is called Resistor. When you have to know about electricity, then you must have learned that all the materials mainly fall under two basic categories are conductors and insulators. Where conductors (such as metals) allow electricity to flow through them; In the same way electricity does not pass through insulators (such as plastics or wood).

The scientific reason for this is that the resistance level in the Conductor is not equal, whereas in the Insulator it is very high. Resistance in this means to create obstruction, which is such a thing that allows electricity without any hindrance. The greater the resistance means the more hindrance. There are some such devices that also precisely control this resistance in electrical circuits, such devices are called resistors. If you want to know more about these resistors and how they work, what are their types, then you should read this article in Hindi about what is a resistor. So let's start without delay.

Resistor is a passive electrical component that creates resistance in the flow of electric current. You can easily see them in any electrical networks and electronic circuits. Resistance is measured in ohms. Ohm is called the resistance that occurs when a current of one ampere passes through one of the resistors which has a 1 drop across across both terminals. This current is always proportional to the voltage across its two terminal ends. This ratio is called Ohm’s law:

R = V / I

If we talk about who discovered the Resistors, it is Otis Boykin. He discovered it in 1959. Resistors are used in many functions. Some examples such as delimit electric current, voltage division, heat generation, matching and loading circuits, control gain, and fix time constants. They are available commercially with resistance values ​​in which they can cover the magnitude of a large range, up to about nine orders of magnitude. Together they are used for electric brakes to dissipate the kinetic energy of trains, or for its electronics the smallest value is also used.

Resistor Definition & Symbol
A resistor is a passive electrical component whose primary function is to limit the flow of electric current. Its international IEC symbol is a rectangular shape. At the same time, its ANSI standard is very common, which is only a zigzag line.

Type of resistor
Resistors can be divided into many types. Which includes everything from construction type to a resistance material. Let us know more about resistor type.

Fixed resistors (their resistance value is fixed)
Variable resistors (their resistance value can be given below), such as:
1. Potentiometer
2. Rheostat
3. Trimpot
Resistance that depends on physical quantity:
1. Thermistors (NTC and PTC) due to temperature change
2. Photo resistor (LDR) due to changing light level
3. Varistor (VDR) due to changing voltage
4. Magneto resistor (MDR) due to changing magnetic field
5. Strain Gauges due to mechanical load
Resistor's Applications
Resistors have a lot of applications, whether it is from digital electronics at the expense of precision components, or for physical quantities in a measurement devices. Let us know more about some important application of their resistors.

Resistors in Series and Parallel
In electronic circuits, resistors are often used. They are either connected in series or in parallel. A circuit designer may obtain a specific resistance value to combine some resistors.

What is Capacitor and how does it work
What is an adapter and its types
What is alternator and what works

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