Light dependent resistors or photoresistors change their resistance with the level of light. The linear resistors are two different types of resistor which are the following. Resistors are the most fundamental and commonly used component in all the electronic circuits. Updated explain the different types of resistors pdf. Different types of resistors with pictures,function and uses. The two main characteristics of a resistor are its resistance, r, in ohms and its power rating, p, in watts. If the resistance of the current value is directly proportional to the applied voltage is called the linear resistance. Resistors are mainly of two types and can be either of fixed or variable value. In short, a resistor is an electronically device that controls the flow of electricity in a circuit. The resistance, r, provides the required reduction in current or the desired drop in voltage.
The ohmic value of these types of resistors is 1 ohm up to 200k ohms or more and can be operated safely up to 350c. This is the most common type of low wattage resistor. Whilst the majority of resistors are standard fixed resistors or variable resistors, there is a number of other resistor types that are used in some more niche or specialised applications. Types of resistors and their uses resistors are used in electronic circuits. There are many different types of resistor available for the electronics constructor to choose from, from very small surface mount chip resistors up to large wirewound power resistors. Resistor construction resistors are components used to resist the flow of electric current and have a stated value of resistance. The resistor values are changed with the help of the temperature and applied voltages are called linear resistors. Many types of resistors are used having different uses and construction. In this video, different types of resistors and different characteristics of resistors have been explained. It is a device that we dont see but the fact is that without resistors electronic equipment is useless and wont work at all. The resistor is the passive circuit element which opposes the flow of. The wattage rating indicates the amount of power the resistor can safely dissipate as heat.
The main function of a resist different types of resistors pdf free download for the electronics students. The principal job of a resistor within an electrical or electronic circuit is to resist hence the name resistor. These resistors are cheap and reliable and stability is high. The resistive material is of carbonclay composition and the leads are made of tinned copper. Resistor hair in pipe same flow large r higher pressure lower pressure small r thehydraulicanalogycompareselectriccurrent.