Type Of Resistor Pdf

There are three types of resistors: Fixed value resistor, Carbon composition resistor and Wire wound resistor. Their construction and other features are explained, in detail in this subtopic. The resistor's function is to reduce the flow of electric current and its ohmic value is fixed.

What are the 4 types of resistors?

Types of Resistors

• Fixed Value Resistors. These are the predominant type of resistor configuration, and as the name suggests, they have a fixed resistance value.
• Variable Resistors. ...
• Resistor Networks. ...
• Carbon Film Resistors. ...
• Metal Film Resistors. ...
• Wirewound Resistors. ...
• Metal Oxide Resistors. ...
• Metal Strip Resistors.

How many types of resistors are?

Normally resistors can be classified into two types namely linear resistor and non-linear resistor.

What is resistor and types of resistor?

Resistors are available in different shapes and sizes. Common types that are available are through-hole and surface mount. A resistor might be static, standard resistor, special, or a pack of variable resistors. There are two basic types of resistors as follows: Linear resistor.

What is a resistor symbol?

The ohm (symbol: Ω) is the SI unit of electrical resistance, named after Georg Simon Ohm. An ohm is equivalent to a volt per ampere.

What is Colour code of resistor?

The colour code used to denote the tolerance rating of a resistor is given as: Brown = 1%, Red = 2%, Gold = 5%, Silver = 10 % If resistor has no fourth tolerance band then the default tolerance would be at 20%.

What are 5 examples of resistors?

Examples of Resistors

• Street Lighting. The street lights get automatically switched on in the evening and switched off in the sunlight.
• Laptop and Mobile Chargers. ...
• Temperature Control. ...
• Fan Speed Controller. ...
• Measuring Electrical Current. ...
• Temperature Sensor. ...
• In-Circuit Functioning. ...
• Dividing Voltage.

What are 3 types of resistors?

There are 3 main types of resistors based on their composition: carbon-composition resistors, carbon-film resistors, and metal-film resistors.

What is the most common type of resistor?

Resistor Types

• The fixed resistor type is the most common resistor.
• There are several variable resistor types, their general property is that the resistance value is adjustable. ...
• Thermistors are resistors of which the resistance changes significantly when the temperature changes.

Where are resistors used?

Because of the nature of generating heat when conducting current, resistors are used in a heater, toaster, microwave, electric stove, and many more heating appliances. In a light bulb, the metal filament glows white-hot due to the very high temperature produced from the resistance when electricity is passed through it.

What is the principle of resistor?

Working Principle of Resistor The resistor absorbs the electrical energy in the process where it acts as a hindrance to the flow of electricity by reducing the voltage, and it is dissipated as heat. In today's world of electronic circuits, the heat dissipation is typically a fraction of a watt.

What is the unit of resistance?

The unit of the electrical resistance, measured with direct current, is the ohm (abbreviated Ω), named after the German physicist and mathematician Georg Simon Ohm (1789-1854). According to ohm's law, the resistance R is the ratio of the voltage U across a conductor and the current I flowing through it: R = U / I.

What is the SI unit of resistor?

The SI unit of electric resistance is the ohm (Ω).

What is resistor classification?

Classification of resistors Categorized by function, there are three types of resistors; fixed resistors, used in a electric circuit; trimmer potentiometer to adjust a circuit; variable resistor, used as a radio volume by changing the resistance.

What are the two classification of resistor?

A resistor is known for installing electrical resistance in the electronic circuit. These are basically two-terminal passive components which are of two types namely fixed resistors and variable resistors.

What is Relay function?

1. The relay permits a small amount of electrical current to control high current loads. When voltage is supplied to the coil, small current passes through the coil, resulting in a larger amount of current passing through the contacts to control the electrical load.

What is LDR in circuit?

Photoresistors, also known as light dependent resistors (LDR), are light sensitive devices most often used to indicate the presence or absence of light, or to measure the light intensity.

What is resistance used for?

Resistance serves as an indicator that quantifies how readily current will flow in a circuit using ohms (Ω) as the unit. Current increases when resistance decreases, and it decreases when resistance increases. Resistors are essential in order to ensure that current flows at the appropriate level in circuits.

What is colour band?

Resistor Color Coding uses colored bands to quickly identify a resistors resistive value and its percentage of tolerance with the physical size of the resistor indicating its wattage rating.

What color is a 50 ohm resistor?

Color	Value
Brown	100 ppm/ºC
Red	50 ppm/ºC
Orange	15 ppm/ºC
Yellow	25 ppm/ºC