Hello readers welcome to the new post. Here we will discuss What Is Resistor? – Symbols, Types and Its Applications. resistor is considered as the main component tof electronic circuits and projects that cause resistance in the flow of current. Here we will cover its different factors such as symbol, type, and other applications. So let’s get started with What Is Resistor?
What is a Resistor?
- The resistor comes with 2 terminals and is known as a passive electrical component that is used for the regulation of current flow in the circuits the value of current in the circuits
- The main work is to minimize the current and decrease the volts in a specific part of the circuit. It is created with the use of copper wires that wounded around the rod made with ceramic and the external prt of resistance has insulating paint coating
SI Unit of Resistor?
Ohm is System international or SI unit of resistor
Symbol of Resistor
Every resistor comes with two terminals and one connection. There are three main types of symbols used for denoting the resistor symbol
Types of Resistors
Types of resistors are defined on the basis of their structure and the material used to make them some main types of resistors are explained here. The main two types of resistors are linear resistors and nonlinear resistors.
Linear resistors are types of resistors that follow the ohm law and define that the voltage of the resistors is in direct relation with the current passing through the resistor. In simple words resistance value of a linear resistor is constant with the change in current and voltage. Common examples are metal film resistors, and carbon resistors main examples.
Linear resistors also have two main types fixed resistors and variable resistor
There is an unchangeable value of resistance for fixed resistors. They are created with the use of different materials like carbon, metal film, and wire-wound. Some main types of fixed resistors are
- Wire wound resistors
- Thin film resistors
- Carbon composition resistors
- Thick film resistors
- The value of the resistor can be changed for this resistor commonly used variable resistors have potentiometers. Their main uses are for adjusting the value of the volume of the stereo speed of motor control by these resistors Common types of variable resistors are
The types of resistors that do not follow the ohm law are called nonlinear resistors which means their resistance varies with a change of voltage or current. Some other factors also change their resistance that is materials, the temperature of the resistor, and the current frequency passes through the resistor. The main types of nonlinear resistors are
- Photo resistors
What is the Colour Coding of Resistors?
To measure the value of the resistor is resistor colo coding system used. Here different color combinations are used on the structure of resistors that give the value of resistance and tolerance. The 4-band code is a commonly used color code for resistors. The first two colors in the code are digits of resistance 3rd denote the multiplier and 4th is tolerance
Here you can see 4 four-band codes of the resistor
|Orange||3||1 kΩ||±3 percent|
|Yellow||4||10 kΩ||±4 percent|
|Green||5||100 kΩ||±0.5 percent|
|Blue||6||1 MΩ||±0.25 percent|
|Violet||7||10 MΩ||±0.1 percent|
|Grey||8||100 MΩ||±0.05 percent|
|White||9||1 GΩ||±0.01 percent|
For reading the code of the resistor just fine the color of every band and from the above details find resistance value and tolerance. Such as you have resistors of these colors Brown, Black, Red, and Gold
Then the value of resistance will be 100 ohms and tolerance is ±5%.
What is Tolerance in Resistors?
Resistor tolerance is the highest deviation from teh value of resistance. It is defined as the percentage of the main value of resistance. As 100 ohm resistor having a five percent tolerance can have resistance values from 95 to 105 ohm
Resistors in Series
The connection of connected resistors will be series if the current passes through them is the same. In this combination the net resistance if the sum of all resistors connected in a series.
Resistors in Series Formula
Rtotal = R1 + R2 + R3+ … + Rn
Resistors in Parallel
What is resistor and resistance in physics?
The resistor is two terminal passive electronic components used in circuits to control the current flow. The resistance is measured in ohm. High resistance will resist the high value of current.
What is a resistor and its uses?
- Resistors are used to control teh flow of current in circuits.
- They are also used as voltage dividers.
- The filter circuits use resistors and is used to block or pass the value of frequencies.
- Resistors help circuits to protect them from overvoltage and overcurrent conditions.
What is the equation for a resistor in physics?
The equation for resistor is
Here V is the voltage provided to the resistor
I is current
R is resistance
V=IR is ohm law
What is a resistor for dummies?
A resistor for dummies is just an explanation of a resistor that is about a resistor and its working
How do resistors work simple?
Let’s take an example to understand eh working resistor. Suppose that you have a water pipe. That is connected to the faucet at one point and drain at another point. The faucet denotes is voltage source of the circuit and the drain is ground. Water in the pipe is current
So now think that we added the valve in the pip. The valve is the resistor of the circuit. They valve when closed high resistance is added to the movement of water or current.
Does a resistor reduce voltage or current?
yes resistor decreases both current and voltage
Why do we need resistors?
Resistors used in circuits to control the current and volt in lmioed value exceeds the required value it can affect the circuits
Why do we use resistors in a circuit?
It is used to control the current
Does higher resistance mean higher voltage?
No, but high resistance means low voltage