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What is resistor

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Resistor Types and Symbol What is resistor? Resistor is de ned As a passive electrical component with two terminals that are used for either limiting or regulating the ow of electric current in electrical circuits. RESISTOR What is the SI Unit of Resistor? • The SI unit of electric resistance is the ohm (Ω) Symbol of RESISTOR Resistor Symbol zigzag lines rectangular box Ohm Symbol The ohm symbol Ω, represents the unit of electrical resistance. Rheostat The rheostat is usually a two terminal device used in physics. The symbol has an arrow going through it. NTC Resistor A negative temperature coe cient (NTC) resistor is essentially a thermistor, which detects temperature. It is the symbol of a resistor with a line through it. Voltage Dependent Resistor The symbol for a voltage dependent resistor has a line through it. A varistor is a voltage-sensitive resistor. Non-Reactive Resistor Impedance This is the general symbol for impedance. Heating This is the heating element resistor symbol. Non-Linear Resistor This is a symbol to represent a nonlinear resistor. As you can see, it has a line going through it. Types of Resistor • Linear Resistor • Non-linear Resistor Linear Resistor • Linear resistors • The resistors whose values change with change in applied temperature and voltage are known as linear resistors. There are two types of linear resistors: Linear Resistor • Fixed resistors: These resistors have a specific value and these ...
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