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Just Asking about resistors

Discussion in 'Electronic Components' started by kud, Sep 6, 2010.

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  1. kud

    kud

    1
    0
    Sep 6, 2010
    why resistors often involved power transistor and usually manufactured from silicon???

    hope you can help me...
     
  2. shrtrnd

    shrtrnd

    3,793
    502
    Jan 15, 2010
    Not sure I'm understanding your question as you intended.
    A resistor is a passive device. Older resistors were commonly made out of carbon, nowadays also made out of other materials.
    A transistor is a semiconductor, not a passive device.
    Most transistors are made with silicon, because you can change the amount of current through the device by 'doping' it with known quantities of impurities.
    Basically, if I understand your question:
    Transistors are chosen to amplify or pass specific voltages and current, and resistors are added to the transistor circuit externally, to help regulate those voltages and currents to make things happen the way you want them to in the device the circuit is built for.
    Hope I understood what you intended to say, and helped.
     
  3. barathbushan

    barathbushan

    223
    0
    Sep 26, 2009
    resistors are made of carbon film , metal film ,glass , nichrome etc not silicon !!!
     
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