Types of Resistors

A resistor is a passive component in a circuit which provides resistance to the flow of current. There are many different types of resistors. These resistors vary in their construction, power dissipation capacities, and tolerance to various parameters (such as temperature and light). The types of resistors include: Carbon Composition Resistor Thermistor Wire Wound Resistor … Read more

Light Dependent Resistor | LDR and Working Principle of LDR

What is a Light Dependent Resistor or a Photo Resistor? A Light Dependent Resistor (LDR) or a photo resistor is a device whose resistivity is a function of the incident electromagnetic radiation. Hence, they are light sensitive devices. They are also called as photo conductors, photo conductive cells or simply photocells. They are made up … Read more

Variable Resistors | Definition, Uses & Types

A variable resistor is a type of resistor whose electrical resistance value can be adjusted on demand. Definition of Variable Resistor It is an electronic component. It is applied in an electronic circuit for adjusting circuit resistance to control voltage or current of that circuit or part of that circuit. The electrical resistance is varied … Read more

Carbon Composition Resistor

Carbon composition resistors are very small in size and have less power loss. Also, the resistors can have a very high value even up to few megaohms. These are so small that we cannot even indicate the value with readable digits on it. For that, we use colour codes on the resistor body to indicate … Read more

Wire Wound Resistor

Wire has certain resistance which is of finite value. This value can vary a lot – it may be small or it may be large depending on the material of the wire used. The resistance is directly proportional to the length of the wire – these are the main 2 principles used in the construction … Read more