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Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315

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BuyFindarrow_forward

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
ISBN: 9781133612315
Textbook Problem

Technician A says that when positive voltage is present at the base of an NPN transistor, the transistor is turned on. Technician B says that when an NPN transistor is turned on, current flows through the collector and emitter of the transistor. Who is correct?

  1. Technician A

  • Technician B
  • Both A and B
  • Neither A nor B
  • To determine

    Whether Technician A or Technician B is correct.

    Explanation

    A transistor is a three-layer three terminal device. Collector, emitter and base are the three terminal of the transistor. There are two types of transistor NPN and PNP.

    In NPN transistor p-type material is sandwich between two n-type materials. The base terminal acts as a control terminal for the transistor. To turn on an NPN transistor the collector should be more positive than the base and emitter should be more negative than the base...

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