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Resistors

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Resistors

  1. 1. RESISTORS<br />Muruvvet DEMIRAL<br />
  2. 2. WHAT’S THE RESISTOR?<br />The resistor is a component in a circuit to reduce the flow of electric current.<br />Its symbol is in a circuit diagram.<br />Resistance values is called Ohm. It is shown Ω .<br />
  3. 3. TYPES OF RESISTOR<br />There are two types of resistors; <br />Fixed Resistor<br />Variable Resistor<br />They are also classified according to the material from which they are made. <br />Carbon film or metal film. <br />Wire wound<br />Foil resistor<br />Grid resistor<br />Carbon or metal film resistors are the most common.<br />
  4. 4. FIXED RESISTORS<br />Carbon Film<br />This is the most general purpose, cheap resistor. Carbon film resistors have a disadvantage; they can tend to be electrically noisy. <br />
  5. 5. FIXED RESISTORS<br />Metal Film<br />Metal film resistors are used when a higher tolerance is needed. The metal film resistor is used for bridge circuits, filter circuits, and low-noise analog signal circuits.<br />
  6. 6. VARIABLE RESISTOS<br />There are two general ways in which variable resistors are used. <br />Value is easily changed, like the volume adjustment of radio. <br />Semi-fixed resistor that is not meant to be adjusted by anyone but a technician. <br />
  7. 7. RESISTOR COLOR CODE<br />
  8. 8. READING RESISTOR VALUES<br />Example: Red, Black, Orange, Green<br />(Red=2),(Black=0),(Orange=3)20 x 103 = 20k ohmTolerance(Green) = ±0.5%<br />
  9. 9. READING RESISTOR VALUES<br />Example: Yellow, Blue, Black, Red, Brown<br />(Yellow=4),(Blue=6),(Black=0), (Red=2)460 x 102 = 46k ohmTolerance(Brown) = ±1%<br />

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